Page 23
                                                             Exhibit 10(iii)A(c)
                                                             

                         
                         SEVERANCE PROTECTION AGREEMENT




     THIS  AGREEMENT  made as of the 1st day of February,  1996,  by and between
National  Service  Industries,  Inc. (the  "Company")  and James S. Balloun (the
"Executive").

     WHEREAS,  the Board of Directors of the Company  (the  "Board")  recognizes
that the possibility of a Change in Control (as hereinafter  defined) exists and
that the  threat of or the  occurrence  of a Change  in  Control  can  result in
significant  distractions  of  its  key  management  personnel  because  of  the
uncertainties inherent in such a situation;

     WHEREAS,  the Board has  determined  that it is  essential  and in the best
interest  of the  Company  and its  stockholders  to retain the  services of the
Executive in the event of a threat or  occurrence  of a Change in Control and to
ensure his continued  dedication and efforts in such event without undue concern
for his personal financial and employment security; and

     WHEREAS,  in order to induce the  Executive  to remain in the employ of the
Company,  particularly in the event of a threat or the occurrence of a Change in
Control,  the Company desires to enter into this Agreement with the Executive to
provide the  Executive  with  certain  benefits in the event his  employment  is
terminated  as a result of, or in  connection  with,  a Change in Control and to
provide the Executive  with the Gross-Up  Payment (as  hereinafter  defined) and
certain other benefits whether or not the Executive's employment is terminated.

     NOW,  THEREFORE,  in  consideration  of the  respective  agreements  of the
parties contained herein, it is agreed as follows:

     1.  Term of Agreement.


          (a) This  Agreement  shall  commence as of February 1, 1996, and shall
continue  in effect  until the  earlier of the  Executive's  sixty-fifth  (65th)
birthday  or the  Executive's  termination  of  employment  prior to a Change in
Control, as provided in Section 1(b) below.

          (b) Prior to a Change in Control  and other than  during a  Threatened
Change in Control  Period,  the term of this Agreement  shall expire on the date
the  Executive  ceases to serve as  Chairman  of the  Board and Chief  Executive
Officer, or in another capacity as an executive officer (as defined in Rule 3b-7
under the  Securities  Exchange  Act of 1934,  as amended (the "1934 Act") as in
effect on the date  hereof) of the  Company,  unless such  cessation  was at the
request  of a Third  Party or  otherwise  occurred  in  connection  with,  or in
anticipation of, a Change in Control.

Page 24
                                                             Exhibit 10(iii)A(c)



     2.  Definitions.

          2.1 Cause.  For purposes of this Agreement,  a termination for "Cause"
is a termination  evidenced by a resolution  adopted in good faith by two-thirds
of the Board that the  Executive (a)  intentionally  and  continually  failed to
substantially  perform  his  duties  with  the  Company  (other  than a  failure
resulting from the  Executive's  incapacity  due to physical or mental  illness)
which  failure  continued  for a period of at least  thirty  (30)  days  after a
written notice of demand for  substantial  performance has been delivered to the
Executive   specifying   the  manner  in  which  the  Executive  has  failed  to
substantially  perform,  or  (b)  intentionally  engaged  in  conduct  which  is
demonstrably and materially  injurious to the Company,  monetarily or otherwise;
provided,  however,  that no termination of the Executive's  employment shall be
for Cause as set  forth in clause  (b)  above  until (x) there  shall  have been
delivered to the  Executive a copy of a written  notice  setting  forth that the
Executive was guilty of the conduct set forth in clause (b) and  specifying  the
particulars thereof in detail, and (y) the Executive shall have been provided an
opportunity  to be heard by the Board (with the  assistance  of the  Executive's
counsel if the  Executive  so  desires).  No act,  nor  failure  to act,  on the
Executive's  part,  shall be considered  "intentional"  unless he has acted,  or
failed to act,  with an absence of good faith and  without a  reasonable  belief
that his  action or  failure  to act was in the best  interest  of the  Company.
Notwithstanding anything contained in this Agreement to the contrary, no failure
to  perform  by the  Executive  after a Notice  of  Termination  is given by the
Executive shall constitute Cause for purposes of this Agreement.

          2.2 Change in Control.  For purposes of this  Agreement,  a "Change in
Control" shall mean any of the following events:

               (a) The acquisition (other than from the Company) by any "Person"
(as the term person is used for purposes of Sections  13(d) or 14(d) of the 1934
Act) of beneficial ownership (within the meaning of Rule 13d-3 promulgated under
the 1934 Act) of twenty  percent  (20%) or more of the combined  voting power of
the Company's then outstanding voting securities; or

               (b) The  individuals  who, as of February 1, 1996, are members of
the Board (the  "Incumbent  Board")  cease for any reason to constitute at least
two-thirds of the Board; provided,  however, that if the election, or nomination
for election by the Company's stockholders,  of any new director was approved by
a vote of at least two-thirds of the Incumbent  Board,  such new director shall,
for  purposes of this  Agreement,  be  considered  as a member of the  Incumbent
Board; or

               (c)  Approval by  stockholders  of the Company of (1) a merger or
consolidation  involving  the  Company  if  the  stockholders  of  the  Company,

                                                                         Page 25
                                                             Exhibit 10(iii)A(c)



immediately  before  such  merger or  consolidation  do not, as a result of such
merger or consolidation,  own, directly or indirectly, more than seventy percent
(70%) of the combined voting power of the then outstanding  voting securities of
the corporation resulting from such merger or consolidation in substantially the
same  proportion as their  ownership of the combined  voting power of the voting
securities  of  the  Company  outstanding  immediately  before  such  merger  or
consolidation, or (2) a complete liquidation or dissolution of the Company or an
agreement for the sale or other  disposition of all or substantially  all of the
assets of the Company.

               Notwithstanding  the foregoing,  a Change in Control shall not be
deemed to occur pursuant to Section 2.2(a),  solely because twenty percent (20%)
or  more  of the  combined  voting  power  of  the  Company's  then  outstanding
securities is acquired by (i) a trustee or other  fiduciary  holding  securities
under one or more employee benefit plans maintained by the Company or any of its
subsidiaries,   or  (ii)  any  corporation  which,  immediately  prior  to  such
acquisition,  is owned directly or indirectly by the stockholders of the Company
in the same  proportion as their  ownership of stock in the Company  immediately
prior to such acquisition (hereinafter referred to as "Related Persons").

               (d)  Notwithstanding  anything contained in this Agreement to the
contrary,  if the  Executive's  employment  is  terminated  prior to a Change in
Control and the Executive reasonably  demonstrates that such termination (1) was
at the  request of a Third  Party (as  hereinafter  defined),  or (2)  otherwise
occurred  in  connection  with,  or in  anticipation  of,  a Change  in  Control
(including,  without limitation,  during a Threatened Change in Control Period),
then for all purposes of this  Agreement,  the date of a Change in Control shall
mean  the  date  immediately  prior  to the  date  of  such  termination  of the
Executive's employment.

          2.3  Disability.  For purposes of this Agreement,  "Disability"  shall
mean a physical or mental  infirmity  which impairs the  Executive's  ability to
substantially  perform  his  duties  under  this  Agreement  for a period of one
hundred eighty (180) consecutive days.

          2.4 (a) Good Reason.  For purposes of this  Agreement,  "Good  Reason"
shall  mean the  occurrence  after a Change in  Control  of any of the events or
conditions described in Subsections (1) through (9) hereof:

               (1) a change  in the  Executive's  status,  title,  position,  or
responsibilities   (including   reporting   responsibilities)   which,   in  the
Executive's  reasonable judgment,  represents an adverse change from his status,
title, position, or responsibilities as in effect immediately prior thereto; the
assignment  to the  Executive of any duties or  responsibilities  which,  in the
Executive's  reasonable  judgment,  are  inconsistent  with his  status,  title,
position,  or responsibilities;  or any removal of the Executive from or failure

Page 26
                                                             Exhibit 10(iii)A(c)



to  reappoint  or reelect  him to any of such  offices or  positions,  except in
connection with the  termination of his employment for  Disability,  Cause, as a
result of his death, or by the Executive other than for Good Reason;

               (2) a reduction in the Executive's  base salary or any failure to
pay the Executive any  compensation  or benefits to which he is entitled  within
five (5) days of the date due;

               (3) a failure to increase  the  Executive's  base salary at least
annually at a  percentage  of base  salary no less than the  average  percentage
increases  (other  than  increases  resulting  from the  Executive's  promotion)
granted to the Executive during the three (3) full years ended prior to a Change
in Control (or such lesser  number of full years during which the  Executive was
employed);

               (4) the  Company1s  requiring  the  Executive  to be based at any
place  outside a thirty  (30) mile  radius  from  Atlanta,  Georgia,  except for
reasonably  required travel on the Company's  business which is not greater than
such travel requirements prior to the Change in Control;

               (5) the failure by the Company to (A) continue in effect (without
reduction in benefit level,  and/or reward  opportunities)  any  compensation or
employee benefit plan in which the Executive was participating immediately prior
to the Change in Control, including, but not limited to, the plans listed on the
Appendix,  unless a substitute or replacement  plan has been  implemented  which
provides substantially  identical compensation or benefits to the Executive,  or
(B) provide the Executive with compensation and benefits,  in the aggregate,  at
least equal (in terms of benefit  levels and/or reward  opportunities)  to those
provided for under each other  compensation or employee  benefit plan,  program,
and practice as in effect  immediately  prior to the Change in Control (or as in
effect following the Change in Control, if greater);

               (6) the  insolvency  or the filing (by any party,  including  the
Company) of a petition for bankruptcy of the Company;

               (7) any material  breach by the Company of any  provision of this
Agreement;

               (8) any purported  termination of the Executive's  employment for
Cause by the Company which does not comply with the terms of Section 2.1; or

               (9)  the  failure  of  the   Company  to  obtain  an   agreement,
satisfactory  to the  Executive,  from any successor or assign of the Company to
assume and agree to perform this Agreement, as contemplated in Section 9 hereof.

                                                                         Page 27
                                                             Exhibit 10(iii)A(c)



               (b) Any event or condition  described  in this Section  2.4(a)(1)
through (9) which  occurs  prior to a Change in Control but which the  Executive
reasonably  demonstrates  (1)  was at the  request  of a  third  party  who  has
indicated an intention or taken steps  reasonably  calculated to effect a Change
in Control (a "Third  Party"),  or (2) otherwise  arose in connection with or in
anticipation of a Change in Control,  shall  constitute Good Reason for purposes
of this  Agreement  notwithstanding  that it  occurred  prior to the  Change  in
Control.

               (c) The Executive's right to terminate his employment pursuant to
this  Section  2.4 shall not be affected  by his  incapacity  due to physical or
mental illness.

          2.5 Threatened  Change in Control.  For purposes of this Agreement,  a
"Threatened Change in Control" shall mean the occurrence of any of the following
events:

               (a) when the Company is aware of, or is contemplating, a proposal
(a  "Proposal")  for any Person other than a Related  Person (1) to acquire five
percent  (5%)  or  more  of  the  voting  power  of  the  Company's  outstanding
securities, or (2) to merge or consolidate with another entity, transfer or sell
assets of the  Company,  or  liquidate  or dissolve  the  Company,  in each case
described in this clause (2), in a transaction that would constitute a Change in
Control; or

               (b) any Person other than a Related Person,

                    (1)  acquires  five percent (5%) or more of the voting power
of the Company's outstanding securities, other than as a holder whose investment
in the Company is eligible  to be  reported  on  Schedule  13G  pursuant to Rule
13d-l(b)(1) promulgated under the Exchange Act, or

                    (2)  initiates  a tender or exchange  offer to acquire  such
number of securities as would result in such Person holding twenty percent (20%)
or more of the voting power of the Company's outstanding securities, or

                    (3) solicits proxies for votes to elect members of the Board
at a shareholders meeting of the Company.

          2.6  Threatened  Change  in  Control  Period.  For  purposes  of  this
Agreement,  a  "Threatened  Change in  Control  Period"  shall  mean the  period
commencing  on the date that a  Threatened  Change in Control has  occurred  and
ending upon:

               (a) the  date the  Proposal  referred  to in  Section  2.5(a)  is
abandoned;

Page 28
                                                             Exhibit 10(iii)A(c)




               (b) the  acquisition  of five percent (5%) of the voting power of
the  Company's  outstanding  securities  by the  Person  referred  to in Section
2.5(a)(1) if such acquisition does not constitute a Threatened Change in Control
under Section 2.5(b)(1);

               (c) the date when any Person  described  in Section  2.5(b),  (1)
shall own less than  five  percent  (5%) of the  voting  power of the  Company's
outstanding  securities,  (2) shall have abandoned the tender or exchange offer,
or (3) shall not have elected a member of the Board as the case may be; or

               (d) the date a Change in Control occurs.

     3.  Termination of Employment.

          3.1 If, during the term of this Agreement,  the Executive's employment
with the Company shall be terminated within  twenty-four (24) months following a
Change in Control, the Executive shall be entitled to the following compensation
and benefits (in addition to any  compensation  and benefits  provided for under
any of the Company's employee benefit plans, policies, and practices):

               (a) If the  Executive's  employment  with  the  Company  shall be
terminated  (1) by the  Company  for Cause or  Disability,  (2) by reason of the
Executive's  death, or (3) by the Executive other than for Good Reason or during
the Window  Period (as each term is defined  herein),  the Company shall pay the
Executive all amounts  earned or accrued  through the  Termination  Date but not
paid as of the Termination Date,  including (i) base salary,  (ii) reimbursement
for reasonable and necessary expenses incurred by the Executive on behalf of the
Company during the period ending on the  Termination  Date,  (iii) vacation pay,
and (iv) sick leave (collectively,  "Accrued Compensation").  In addition to the
foregoing,  if the  Executive's  employment  is  terminated  by the  Company for
Disability or by reason of the Executive's  death,  the Company shall pay to the
Executive  or his  beneficiaries  an amount  equal to the "Pro Rata  Bonus"  (as
hereinafter  defined).  The "Pro Rata  Bonus"  is an  amount  equal to the Bonus
Amount (as hereinafter defined) multiplied by a fraction, the numerator of which
is the number of days in such fiscal year through the  Termination  Date and the
denominator of which is three hundred  sixty-five (365). The term "Bonus Amount"
shall mean the  greater of the (x) most recent  annual  bonus paid or payable to
the  Executive,  or, if greater,  the annual  bonus paid or payable for the full
fiscal  year ended  prior to the fiscal  year  during  which a Change in Control
occurred,  or (y) average of the annual bonuses paid or payable during the three
(3) full fiscal years ended prior to the  Termination  Date or, if greater,  the
three (3) full fiscal  years  ended prior to the Change in Control  (or, in each
case,  such lesser  period for which annual  bonuses were paid or payable to the
Executive).  Executive's entitlement to any other compensation or benefits shall
be determined in accordance with the Company's  employee benefit plans and other

                                                                         Page 29
                                                             Exhibit 10(iii)A(c)



applicable programs and practices then in effect.

               (b) If the  Executive's  employment  with  the  Company  shall be
terminated  (other than by reason of death),  (1) by the Company  other than for
Cause  or  Disability,  (2) by the  Executive  for  Good  Reason,  or (3) by the
Executive  for any reason  within the sixty  (60) day period  commencing  on the
first  anniversary  of the date of the  occurrence  of a Change in Control  (the
"Window Period"), the Executive shall be entitled to the following:

                    (i)  the  Company   shall  pay  the  Executive  all  Accrued
Compensation and a Pro-Rata Bonus;

                    (ii) the Company  shall pay the  Executive as severance  pay
and  in  lieu  of  any  further  compensation  for  periods  subsequent  to  the
Termination Date, in a single payment an amount (the  Severance Amount") in cash
equal to two (2) times the sum of (A) the greater of the Executive's base salary
in effect on the  Termination  Date or at any time  during the  ninety  (90) day
period prior to the Change in Control ("Base Salary"), and (B) the Bonus Amount.
Notwithstanding  the  foregoing,  if the  Executive  has  attained  at least age
sixty-three (63) on the Termination  Date, the Severance Amount to be paid under
this  Subsection  (ii) shall be the amount  described in the preceding  sentence
multiplied by a fraction (which in no event shall be less than one-half  (1/2)),
the  numerator  of which  shall be the number of months  (for this  purpose  any
partial  month  shall  be  considered  as a whole  month)  remaining  until  the
Executive's  sixty-fifth  (65th)  birthday  (but in no event  shall be less than
twelve (12)) and the denominator of which shall be twenty-four (24);

                    (iii)  for a number  of  months  equal to the  lesser of (A)
twenty-four  (24), or (B) the number of months  remaining  until the Executive's
sixty-fifth  (65th) birthday (the "Continuation  Period"),  the Company shall at
its  expense  continue  on  behalf  of the  Executive  and  his  dependents  and
beneficiaries,   the  life   insurance,   disability,   medical,   dental,   and
hospitalization  benefits  provided  (x) to the  Executive at the time Notice of
Termination is given, at any time during the ninety (90) day period prior to the
Change in Control, or at any time thereafter, or (y) to other similarly situated
executives  who  continue in the employ of the Company  during the  Continuation
Period. The coverage and benefits (including  deductibles and costs) provided in
this  Section  3.1(b)(iii)  during  the  Continuation  Period  shall  be no less
favorable to the Executive and his  dependents and  beneficiaries  than the most
favorable of such coverages and benefits  during any of the periods  referred to
in clauses (x) and (y) above. The Company's obligation hereunder with respect to
the foregoing benefits shall be limited to the extent that the Executive obtains
any such benefits  pursuant to a subsequent  employer's  benefit plans, in which
case,  the  Company may reduce the  coverage  of any  benefits it is required to
provide the Executive  hereunder as long as the aggregate coverages and benefits
of the combined  benefit plans is no less  favorable to the  Executive  than the

Page 30
                                                             Exhibit 10(iii)A(c)



coverages and benefits required to be provided hereunder.  This Subsection (iii)
shall not be  interpreted  so as to limit any benefits to which the Executive or
his  dependents  may be entitled  under any of the  Company's  employee  benefit
plans,   programs,  or  practices  following  the  Executive's   termination  of
employment,  including,  without limitation,  retiree medical and life insurance
benefits;

                    (iv) the Company shall pay in a single  payment an amount in
cash equal to the excess of (A) the Supplemental  Retirement Benefit (as defined
below) had (w) the Executive  remained employed by the Company for an additional
two (2)  complete  years of credited  service (or until his  sixty-fifth  (65th)
birthday, if earlier), (x) his annual compensation during such period been equal
to his  Base  Salary  and the  Bonus  Amount,  (y)  the  Company  made  employer
contributions  to each defined  contribution  plan in which the  Executive was a
participant  at the  Termination  Date (in an amount equal to the amount of such
contribution for the plan year immediately  preceding the Termination Date), and
(z) he been fully (100%)  vested in his benefit  under each  retirement  plan in
which  the  Executive  was a  participant,  over  (B)  the  lump  sum  actuarial
equivalent  of the  aggregate  retirement  benefit  the  Executive  is  actually
entitled to receive under such retirement plans. For purposes of this Subsection
(iv), the  "Supplemental  Retirement  Benefit" shall mean the lump sum actuarial
equivalent of the  aggregate  retirement  benefit the Executive  would have been
entitled to receive under the Company's supplemental and other retirement plans,
including,  but  not  limited  to,  Pension  Plan C (the  "NSI  Pension  Plan");
provided, however, if the Executive has attained at least age fifty (50) and has
been  employed  by the  Company  for  at  least  fifteen  (15)  years  as of the
Termination Date, the calculation of the Supplemental  Retirement  Benefit shall
be made  pursuant to the Early  Retirement  Accrued  Pension  formula  under the
Supplemental Retirement Plan for Executives of the Company without regard to the
Executive's  attained age or year of credited service (as defined therein).  For
purposes of this Subsection (iv), the "actuarial equivalent" shall be determined
in  accordance  with  the  actuarial  assumptions  used for the  calculation  of
benefits under the NSI Pension Plan as applied prior to the Termination  Date in
accordance with such plan's past practices; and

                    (v) (A) the restrictions on any outstanding incentive awards
(including  restricted  stock and  granted  Performance  Shares)  granted to the
Executive  under the Long-Term  Incentive  Program (the  "Program") or under any
other  incentive plan or arrangement  shall lapse and such incentive award shall
become  one  hundred  percent  (100%)  vested,   all  stock  options  and  stock
appreciation   rights  granted  to  the  Executive   shall  become   immediately
exercisable and shall become hundred percent (100%) vested,  and all Performance
Units granted to the Executive shall become hundred  percent (100%) vested,  and
(B) the Executive  shall have the right to require the Company to purchase,  for
cash, any shares of unrestricted  stock or shares purchased upon exercise of any
options, at a price equal to the fair market value of such shares on the date of

                                                                         Page 31
                                                             Exhibit 10(iii)A(c)



purchase by the Company.

                    (c)  The  amounts   provided  for  in  Sections  3.1(a)  and
3.1(b)(i),  (ii),  (iv),  and (v) shall be paid  within  five (5) days after the
Executive's Termination Date.

                    (d) The  Executive  shall not be required  to  mitigate  the
amount of any payment provided for in this Agreement by seeking other employment
or otherwise and no such payment shall be offset or reduced by the amount of any
compensation or benefits provided to the Executive in any subsequent  employment
except as provided in Section 3.1(b)(iii).

          3.3 The severance pay and benefits provided for in Sections 3.1(a) and
3.1(b)(i)  and (ii)  shall be in lieu of any  other  severance  pay to which the
Executive  may be  entitled  under  any  Company  severance  plan,  program,  or
arrangement.

     4. Notice of Termination.  During a Threatened Change in Control Period and
following a Change in Control,  any purported  termination  by the Company or by
the Executive  shall be  communicated  by written  Notice of  Termination to the
other.  For purposes of this Agreement,  a "Notice of Termination"  shall mean a
notice which  indicates  the specific  termination  provision in this  Agreement
relied upon and shall set forth in reasonable detail the facts and circumstances
claimed to provide a basis for termination of the Executive's  employment  under
the provision so indicated.  For purposes of this  Agreement,  no such purported
termination shall be effective without such Notice of Termination.

     5.  Termination  Date.  "Termination  Date"  shall  mean in the case of the
Executive's death, his date of death, and in all other cases, the date specified
in the Notice of Termination subject to the following:

          (a) If the  Executive's  employment  is  terminated by the Company for
Cause or due to  Disability,  the date  specified  in the Notice of  Termination
shall be at least  thirty (30) days from the date the Notice of  Termination  is
given to the Executive,  provided that in the case of Disability,  the Executive
shall not have returned to the full-time  performance  of his duties during such
period of at least thirty (30) days; and

          (b) If the Executive's  employment is terminated for Good Reason,  the
date  specified in the Notice of  Termination  shall not be more than sixty (60)
days from the date the Notice of Termination is given to the Company.

     6. Excise Tax Payments.

          (a)  Notwithstanding  anything  contained  in  this  Agreement  to the
contrary  and without  regard to whether  the  Executive's  employment  with the
Company has  terminated,  in the event that any  payment or benefit  (within the

Page 32
                                                             Exhibit 10(iii)A(c)



meaning of Section  280G(b)(2) of the Internal  Revenue Code of 1986, as amended
[the  "Code"]) to the  Executive or for his benefit,  whether paid or payable or
distributed  or  distributable  pursuant  to the  terms  of  this  Agreement  or
otherwise in connection with, or arising out of, his employment with the Company
or a change in ownership or effective control of the Company or of a substantial
portion  of its  assets (a  "Payment"  or  "Payments"),  would be subject to the
excise tax imposed by Section 4999 of the Code or any interest or penalties  are
incurred by the  Executive  with  respect to such  excise tax (such  excise tax,
together  with any such interest and  penalties,  are  hereinafter  collectively
referred  to as the  "Excise  Tax"),  then the  Executive  shall be  entitled to
receive an  additional  payment (a  "Gross-Up  Payment")  in an amount such that
after payment by the Executive of all taxes (including any interest or penalties
imposed  with respect to such taxes and the Excise  Tax),  including  any Excise
Tax, imposed upon the Gross-Up  Payment,  the Executive retains an amount of the
Gross-Up Payment equal to the Excise Tax imposed upon the Payments.

          (b) An  initial  determination  as to  whether a  Gross-Up  Payment is
required  pursuant  to this  Section 6 and the amount of such  Gross-Up  Payment
shall be made by an  accounting  firm  selected by the  Company  and  reasonably
acceptable  to the  Executive  which is  designated  one of the five (5) largest
accounting  firms in the United States (the "Accounting  Firm").  The Accounting
Firm shall  provide  its  determination  (the  "Determination"),  together  with
detailed  supporting  calculations  and  documentation,  to the  Company and the
Executive within five (5) days of the Termination  Date, if applicable,  or such
other  time as  requested  by the  Company  or by the  Executive  (provided  the
Executive  reasonably  believes  that any of the  Payments may be subject to the
Excise Tax) and if the Accounting  Firm determines that no Excise Tax is payable
by the  Executive  with respect to a Payment or Payments,  it shall  furnish the
Executive with an opinion reasonably  acceptable to the Executive that no Excise
Tax will be imposed with  respect to any such  Payment or Payments.  Within five
(5) days of the delivery of the  Determination  to the Executive,  the Executive
shall have the right to dispute the Determination (the "Dispute").  The Gross-Up
Payment,  if any, as  determined  pursuant to this Section 6(b) shall be paid by
the  Company  to the  Executive  within  five  (5)  days of the  receipt  of the
Accounting Firm's  determination.  The existence of the Dispute shall not in any
way  affect  the right of the  Executive  to  receive  the  Gross-Up  Payment in
accordance with the  Determination.  If there is no Dispute,  the  Determination
shall be binding,  final,  and  conclusive  upon the  Company and the  Executive
subject to the application of Section 6(c).

          (c) As a result of the uncertainty in the application of Sections 4999
and 280G of the Code,  it is  possible  that a  Gross-Up  Payment  (or a portion
thereof) will be paid which should not have been paid (an "Excess Payment"),  or
a Gross-Up  Payment (or a portion  thereof) which should have been paid will not
have  been paid (an  "Underpayment").  An  Underpayment  shall be deemed to have
occurred  (1)  upon  notice  (formal  or  informal)  to the  Executive  from any
governmental  taxing authority that the tax liability of the Executive  (whether

                                                                         Page 33
                                                             Exhibit 10(iii)A(c)



in respect of the then current  taxable  year of the  Executive or in respect of
any prior  taxable  year of the  Executive)  may be  increased  by reason of the
imposition  of the Excise Tax on a Payment or Payments with respect to which the
Company  has  failed  to  make  a  sufficient  Gross-Up  Payment,   (2)  upon  a
determination  by a court,  (3) by reason of determination by the Company (which
shall  include  the  position  taken  by  the  Company,  or  together  with  its
consolidated  group,  on  its  federal  income  tax  return),  or (4)  upon  the
resolution  to  the  satisfaction  of  the  Executive  of  the  Dispute.  If  an
Underpayment  occurs,  the Executive  shall promptly  notify the Company and the
Company  shall pay to the  Executive at least five (5) days prior to the date on
which the  applicable  government  taxing  authority has requested  payment,  an
additional  Gross-Up  Payment equal to the amount of the  Underpayment  plus any
interest and penalties (other than interest and penalties imposed by reason of a
failure to file timely a tax return or pay taxes shown due on a return)  imposed
on the  Underpayment.  An Excess Payment shall be deemed to have occurred upon a
"Final  Determination" (as hereinafter defined) that the Excise Tax shall not be
imposed  upon a Payment or  Payments  with  respect to which the  Executive  had
previously received a Gross-Up Payment. A Final Determination shall be deemed to
have occurred when the  Executive  has received from the  applicable  government
taxing  authority a refund of taxes or other  reduction in his tax  liability by
reason of the Excess  Payment  and upon either (i) the date a  determination  is
made by, or an  agreement  is entered  into with,  the  applicable  governmental
taxable  authority which finally and  conclusively  binds the Executive and such
taxing  authority,  or in the event  that a claim is  brought  before a court of
competent jurisdiction,  the date upon which a final determination has been made
by such court and either all appeals have been taken and finally resolved or the
time for all  appeals  has  expired,  or (ii) the  statute of  limitations  with
respect to the  Executive's  applicable  tax return  has  expired.  If an Excess
Payment is determined to have been made,  the amount of the Excess Payment shall
be treated as a loan by the Company to the Executive and the Executive shall pay
to  the  Company  on  demand  (but  not  less  than  ten  (10)  days  after  the
determination  of such Excess  Payment)  the amount of the Excess  Payment  plus
interest  at  an  annual  rate  equal  to  the  rate  provided  for  in  Section
1274(b)(2)(B)  of the Code  from the date the  Gross-Up  Payment  (to  which the
Excess Payment relates) was paid to the Executive until the date of repayment to
the Company.

          (d)  Notwithstanding  anything  contained  in  this  Agreement  to the
contrary, in the event that, according to the Determination,  an Excise Tax will
be imposed on any Payment or Payments,  the Company shall pay to the  applicable
government  taxing  authorities  as Excise  Tax  withholding,  the amount of the
Excise Tax that the Company has actually withheld from the Payment or Payments.

     7.  Unauthorized  Disclosure.  During  the  period  that the  Executive  is
actively employed by the Company,  the Executive shall not make any Unauthorized
Disclosure. For purposes of this Agreement, "Unauthorized Disclosure" shall mean

Page 34
                                                             Exhibit 10(iii)A(c)



disclosure  by the  Executive  without  the  consent  of the Board  (other  than
pursuant to a court order) to any person,  other than an employee or director of
the  Company  or  a  person  to  whom  disclosure  is  reasonably  necessary  or
appropriate in connection with the performance by the Executive of his duties as
an  executive  of the Company,  or as may be legally  required,  of any material
confidential  information  obtained by the Executive  while in the employ of the
Company (including any material confidential  information with respect to any of
the Company's customers or methods of distribution),  the disclosure of which is
demonstrably and materially injurious to the Company;  provided;  however,  that
such term shall not  include the use or  disclosure  by the  Executive,  without
consent,  of any  information  known  generally  to the public  (other than as a
result of disclosure  by him in violation of this Section 7) or any  information
not  otherwise  considered  confidential  and  material by a  reasonable  person
engaged in the same business as that conducted by the Company; provided further,
however,  that any  breach  of this  Section  7 shall in no  event  subject  the
Executive  to damages  (including  costs,  fees,  and  expenses  incurred by the
Company) in excess of Ten Thousand Dollars ($10,000) in the aggregate.

     8.  Non-Compete.  During the period that the Executive is actively employed
by the Company,  the Executive shall not,  directly or indirectly,  own, manage,
operate, control, consult with, or be connected as an officer,  employee, agent,
partner,  director,  or consultant  with, or have any financial  interest in, or
assist anyone in the conduct of, any business which  directly  competes with the
businesses  of  the  Company  in  the  State  of  Georgia.  Notwithstanding  the
foregoing, the Executive shall not be in violation of the preceding sentence due
to ownership  (directly or  indirectly)  by the  Executive of not more than five
percent (5%) of the issued and outstanding  class of securities of a corporation
whose securities are publicly traded.

     9. Successors; Binding Agreement.

          (a) This  Agreement  shall be  binding  upon  and  shall  inure to the
benefit of the Company, its successors and assigns and the Company shall require
any successor or assign to expressly  assume and agree to perform this Agreement
in the same manner and to the same extent that the Company  would be required to
perform it if no such  succession or assignment  had taken place.  The term "the
Company" as used herein shall  include  such  successors  and assigns.  The term
"successors and assigns" as used herein shall mean a corporation or other entity
acquiring  all or  substantially  all the assets  and  business  of the  Company
(including this Agreement) whether by operation of law or otherwise.

          (b) Neither this Agreement nor any right or interest  hereunder  shall
be assignable or  transferable  by the Executive,  his  beneficiaries,  or legal
representatives, except by will or by the laws of descent and distribution. This
Agreement  shall inure to the benefit of and be enforceable  by the  Executive's
legal personal representative.

                                                                         Page 35
                                                             Exhibit 10(iii)A(c)




     10. Fees and  Expenses.  The  Company  shall pay all legal fees and related
expenses (including the costs of experts, evidence, and counsel) incurred by the
Executive as they become due as a result of (a) the  Executive's  termination of
employment (including all such fees and expenses, if any, incurred in contesting
or disputing any such termination of employment),  (b) the Executive  seeking to
obtain or enforce  any right or benefit  provided  by this  Agreement  or by any
other plan or arrangement maintained by the Company under which the Executive is
or may be entitled to receive  benefits,  or (c) the Executive's  hearing before
the Board as contemplated in Section 2.1 of this Agreement;  provided,  however,
that the  circumstances set forth in clauses (a) and (b) (other than as a result
of the Executive's  termination of employment under  circumstances  described in
Section 2.2(d)) occurred on or after a Change in Control.

     11.  Notice.  For  purposes  of  this  Agreement,  notices  and  all  other
communications   provided  for  in  the  Agreement   (including  the  Notice  of
Termination)  shall be in  writing  and shall be deemed to have been duly  given
when personally  delivered or sent by certified mail, return receipt  requested,
postage prepaid,  addressed to the respective addresses last given by each party
to the other,  provided that all notices to the Company shall be directed to the
attention of the Board with a copy to the Secretary of the Company.  All notices
and communications shall be deemed to have been received on the date of delivery
thereof or on the third  business  day after the  mailing  thereof,  except that
notice of change of address shall be effective only upon receipt.

     12.  Non-Exclusivity of Rights.  Nothing in this Agreement shall prevent or
limit the Executive's continuing or future participation in any benefit,  bonus,
incentive,  or other  plan or  program  provided  by the  Company  or any of its
subsidiaries and for which the Executive may qualify,  nor shall anything herein
limit or reduce such rights as the Executive may have under any other agreements
with the Company or any of its  subsidiaries.  Amounts which are vested benefits
or which the  Executive  is  otherwise  entitled  to  receive  under any plan or
program of the Company or any of its subsidiaries shall be payable in accordance
with such plan or program, except as explicitly modified by this Agreement.

     13.  Settlement of Claims.  The  Company's  obligation to make the payments
provided  for in  this  Agreement  and  otherwise  to  perform  its  obligations
hereunder  shall  not be  affected  by  any  circumstances,  including,  without
limitation, any set-off, counterclaim, recoupment, defense, or other right which
the Company may have against the Executive or others.

     14. Miscellaneous.  No provision of this Agreement may be modified, waived,
or  discharged  unless such waiver,  modification,  or discharge is agreed to in
writing and signed by the Executive  and the Company.  No waiver by either party
hereto at any time of any breach by the other  party  hereto  of, or  compliance

Page 36
                                                             Exhibit 10(iii)A(c)



with, any condition or provision of this Agreement to be performed by such other
party shall be deemed a waiver of similar or dissimilar provisions or conditions
at the same or at any prior or subsequent time. No agreement or representations,
oral or otherwise, express or implied, with respect to the subject matter hereof
have  been  made by  either  party  which  are not  expressly  set forth in this
Agreement.

     15.  Governing Law. This  Agreement  shall be governed by and construed and
enforced  in  accordance  with the laws of the State of Georgia  without  giving
effect to the conflict of laws  principles  thereof.  Any action  brought by any
party to this Agreement  shall be brought and maintained in a court of competent
jurisdiction in Fulton County in the State of Georgia.

     16.  Severability.  The  provisions  of  this  Agreement  shall  be  deemed
severable and the  invalidity  or  unenforceability  of any provision  shall not
affect the validity or enforceability of the other provisions hereof.

     17. Entire Agreement - Letter Agreement of February 1, 1996. This Agreement
constitutes  the entire  agreement  between  the parties  hereto and,  except as
provided  hereinbelow in this Paragraph 17, supersedes all prior agreements,  if
any,  understandings,  and  arrangements,  oral or written,  between the parties
hereto with respect to the subject matter hereof.  The Executive and the Company
have entered into a letter agreement dated February 1, 1996, which, in Paragraph
7 thereof, provides severance payments in certain circumstances. In the event of
the Executive's termination in connection with a Change in Control that entitles
the Executive to benefits under this  Agreement,  the Executive will receive the
greater of the  payments  and  benefits  provided  under this  Agreement  (after
consideration  of any tax  penalties)  or the  severance  payments  described in
Paragraph 7 of said letter agreement.

                                                                         Page 37
                                                             Exhibit 10(iii)A(c)

     IN WITNESS WHEREOF, the Company has caused this Agreement to be executed by
its duly authorized  officer and the Executive has executed this Agreement as of
the day and year first above written.


ATTEST:                           NATIONAL SERVICE INDUSTRIES, INC.



/s/ Carol Ellis Morgan            By:  /s/ John G. Medlin, Jr.
    Assistant Secretary                    John G. Medlin, Jr.
                                           Chairman, Executive Resource,
                                           Compensation and Nominating
                                           Committee of The Board of Directors
                                 


                                       /s/ James S. Balloun  
                                           James S. Balloun