APPENDIX "A"

               2005 INCENTIVE AND NON-QUALIFIED STOCK OPTION PLAN
                                       OF
                     AMERICAN PHYSICIANS SERVICE GROUP, INC.
                               A Texas Corporation



                               I. Purpose of Plan

     The purpose of this 2005  Incentive  and  Non-Qualified  Stock  Option Plan
(this "Plan") is to strengthen  American  Physicians Service Group, Inc. a Texas
corporation  (the  "Corporation"),  and its  subsidiaries,  by  providing  stock
options as a means to attract, retain and motivate corporate personnel.

                               II. Administration

     This Plan shall be administered by an administrative body (the "Committee")
designated by the Board of Directors of the Corporation (the "Board"). The Board
may  designate  itself as the  Committee  or appoint  two or more  "Non-Employee
Directors" to a committee  which shall serve as the  Committee.  For purposes of
this Plan, "Non-Employee Director" will mean a director who meets the definition
of "non-employee director" under Rule 16b-3 under the Securities Exchange Act of
1934 (as amended,  the "1934 Act"),  and who qualifies as an "outside  director"
within the meaning of Section  162(m) of the Internal  Revenue Code of 1986,  as
amended (the "Code"),  and to the extent applicable,  meets the requirements for
an independent  director,  pursuant to the rules of any  securities  exchange on
which  the stock is  listed,  or if the  stock is not  listed,  the rules of the
National Association of Securities Dealers,  Inc. ("NASD"),  if applicable.  The
Committee  shall have the sole  authority  to select  the  persons  entitled  to
receive  Options (as defined  below) from among those  eligible  hereunder  (the
"Optionees") and to establish the number of shares that may be issued under each
Option to such persons;  provided,  however, that, notwithstanding any provision
in this Plan to the contrary, the maximum number of shares of common stock, $.10
par value per share of the Corporation (the "Common Stock"), that may be subject
to Options granted under the Plan to an individual  Optionee during any calendar
year may not  exceed  150,000  (subject  to  adjustment  in the same  manner  as
provided in Article VIII hereof to prevent  dilution.)  The limitation set forth
in the  preceding  sentence  shall be  applied  in a manner  which  will  permit
compensation   generated  under  the  Plan  to  constitute   "performance-based"
compensation  for  purposes of Section  162(m) of the Code,  including,  without
limitation,  counting  against  such  maximum  number of  shares,  to the extent
required under Section 162(m) of the Code and applicable  interpretive authority
thereunder, any shares subject to Options that are canceled or repriced.

     All determinations, interpretations and constructions made by the Committee
in good  faith  will not be  subject  to review by any person and will be final,
binding and conclusive on all persons.  Members of the Committee and any officer
or employee of the Corporation  acting at the direction of, or on behalf of, the
Committee will not be personally liable for any action or determination taken or
made in good faith with respect to the Plan,  and will, to the extent  permitted
by law, be fully  indemnified by the Corporation with respect to any such action
or determination.


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                             III. Grant of Options

     The Corporation is authorized to grant incentive stock options  ("Incentive
Stock  Options")  as defined in section 422 of the Code and options that are not
intended to be Incentive Stock Options (hereafter  "Non-Qualified Stock Options"
and, together with Incentive Stock Options,  the "Options").  Any Option granted
under  this Plan  shall be  granted  within 10 years  from the date this Plan is
adopted,  or the date this Plan is  approved  by the  shareholders  pursuant  to
Article X,  whichever  is earlier.  No Option  granted  under this Plan shall be
exercisable  by its terms after the expiration of 10 years from the grant of the
Option.  Options  may be  granted  only to  individuals  (a)  who are  employees
(including  officers and directors who are also employees) of the Corporation or
any parent or subsidiary  corporation (as defined in section 424 of the Code) of
the Corporation,  (b) who are  non-employee  directors of the Corporation at the
time  the  Option  is  granted  and  who may be  granted  Options  hereunder  in
compliance  with Rule 16b-3,  or (c) consultants and advisors of the Corporation
or any parent or subsidiary  corporation of the Corporation who render bona fide
services  to the  Corporation  or any parent or  subsidiary  corporation  of the
Corporation;  provided that such  services  must not be in  connection  with the
offer or sale of securities  in a  capital-raising  transaction.  Options may be
granted to the same individual on more than one occasion.

     Incentive  Stock  Options  may not be  granted  to  persons  who own  stock
possessing  more than 10  percent  of the  total  combined  voting  power of all
classes of stock of the  Corporation,  or of its parent or  subsidiary,  if any,
within the meaning of section 422(b)(6) of the Code, unless (i) at the time such
Option is granted the option  exercise price is at least 110% of the fair market
value of the Common  Stock  subject to such  Option and (ii) such  Option by its
terms is not exercisable after the expiration of five years from the date of the
grant.

     To the extent  that the  aggregate  fair market  value of Common  Stock (as
determined in good faith by the Committee at the time the Incentive Stock Option
is granted),  with respect to which  Incentive Stock Options are exercisable for
the first time by an  individual  during any calendar  year (under all incentive
stock option plans of the Corporation and any parent or subsidiary  corporation)
exceeds  $100,000,  such  excess  Incentive  Stock  Options  shall be treated as
Non-Qualified Stock Options.  The Committee shall determine,  in accordance with
applicable provisions of the Code, Treasury Regulations and other administrative
pronouncements,  which  of  an  Optionee's  Incentive  Stock  Options  will  not
constitute  Incentive  Stock Options because of such limitation and shall notify
the  Optionee  of  such   determination  as  soon  as  practicable   after  such
determination.

                           IV. Stock Subject to Plan

     The aggregate  number of shares of Common Stock that may be issued pursuant
to Options  granted  under this Plan shall not exceed  350,000  shares of Common
Stock  (subject to  adjustment  as provided  in Article  VIII).  Such shares may
consist of authorized but unissued  shares of Common Stock or previously  issued
shares of Common stock reacquired by the  Corporation.  Any of such shares which
remain  unissued  and  which  are not  subject  to  outstanding  Options  at the
termination  of this Plan shall  cease to be subject  to this Plan,  but,  until
termination  of this Plan, the  Corporation  shall at all times make available a
sufficient  number of shares to meet the  requirements of this Plan.  Should any



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Option  hereunder  expire or terminate prior to its exercise in full, the shares
of Common  Stock  theretofore  subject to such Option may again be subject to an
Option  granted under this Plan to the extent  permitted  under Rule 16b-3.  The
aggregate  number of shares which may be issued under this Plan shall be subject
to adjustment  as provided in Article VIII hereof.  Exercise of an Option in any
manner pursuant to the terms of this Plan and the related Option Agreement shall
result  in a  decrease  in the  number  of  shares  of  Common  Stock  which may
thereafter be available, for purposes of the Plan, by the number of shares as to
which the Option is exercised.  Separate stock  certificates  shall be issued by
the  Corporation  for those  shares  acquired  pursuant  to the  exercise  of an
Incentive Stock Option and for those shares acquired pursuant to the exercise of
any Non-Qualified Stock Options.

                              V. Option Agreements

     Each  Option  shall  be  evidenced  by  a  written  agreement  between  the
Corporation and the Optionee ("Option Agreement") which shall contain such terms
and conditions as the Committee deems necessary,  including, without limitation,
terms and  conditions  relating to the  termination  of  Options.  The terms and
conditions of the respective Option Agreements need not be identical.

                   VI. Option Price; Payment of Option Price

     The  purchase  price for a share of Common  Stock  subject to an  Incentive
Stock  Option  granted  pursuant  to this  Plan  shall not be less than the fair
market value of the Common Stock subject to such  Incentive  Stock Option on the
date such Option is granted.  The purchase price for a share of the Common Stock
subject to a Non-Qualifying  Stock Option granted pursuant to this Plan shall be
not less than 100% of the fair market value of the Common Stock  subject to such
Non-Qualifying Stock Option on the date such Option is granted.

     For all purposes under the Plan, the fair market value of a share of Common
Stock on a particular  date shall be equal to the closing price per share of the
Common Stock (i) reported by the National  Market  System of NASDAQ on that date
or (ii) if the Common Stock is listed on a national stock exchange,  reported on
the stock  exchange  composite  tape on that date. If the Common Stock is traded
over  the  counter  at the time a  determination  of its  fair  market  value is
required to be made hereunder, its fair market value shall be deemed to be equal
to the average  between the reported  high and low or closing bid and ask prices
of the  Common  Stock on the most  recent  date on which  the  Common  Stock was
publicly  traded.  In the event the Common Stock is not  publicly  traded at the
time a  determination  of its  value  is  required  to be  made  hereunder,  the
determination  of its  fair  market  value  shall  be made in good  faith by the
Committee in such manner as it deems appropriate.

     Notwithstanding   the   foregoing,   an   Incentive   Stock   Option  or  a
Non-Qualifying Stock Option may be granted with an exercise price less than 100%
of fair market  value if such Option is granted  pursuant  to an  assumption  or
substitution for another option in a manner satisfying the provisions of Section
424(a) of the Code.

     The exercise price of an Option shall be paid in one of the following forms
(or any  combination  thereof):  (a) cash or (b) the  transfer to the Company of
already-owned shares of Common Stock;  provided,  however that the Committee may



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determine that the exercise price be paid only in cash. In addition, Options may
be exercised through such "cashless exercise"  procedures that are, from time to
time, deemed acceptable by the Committee and not in violation of applicable law.
Any shares of Common Stock transferred to the Company as payment of the exercise
price  (including  shares of Common Stock  underlying the Option to be exercised
and  being  used to pay the  exercise  price  therefor  pursuant  to a  cashless
exercise)  shall be  valued  at their  fair  market  value  on the  trading  day
preceding the date of exercise of such Option.

                          VII. Options Nontransferable

     Incentive  Stock  Options and all rights  granted  thereunder  shall not be
transferable  other  than by  will or the  laws  of  descent  and  distribution.
Non-Qualified  Stock  Options  and all rights  granted  thereunder  shall not be
transferable other than by will or the laws of descent and distribution, or upon
the express prior  written  consent of the Committee in each instance so long as
such  transfer  is to a "family  member" as defined  under  General  Instruction
A(1)(a)(5)  to the  Registration  Statement  on Form S-8.  All  Incentive  Stock
Options  shall  be  exercisable  during  the  Optionee's  lifetime,  only by the
Optionee or the Optionee's guardian or legal representative.

                    VIII. Recapitalization or Reorganization

     In the  event  of a stock  split,  reverse  stock  split,  stock  dividend,
combination  or  reclassification  of  the  Common  Stock,  an  appropriate  and
proportionate adjustment shall be made to the maximum number of shares of Common
Stock available for issuance  pursuant to Options granted pursuant to this Plan,
as set forth in Article IV hereof,  and the  maximum  number of shares of Common
Stock subject to Options  granted to a person  during any calendar  year, as set
forth in Article II hereof.  A corresponding  change shall be made to the number
and kind of shares, and the exercise price per share, of unexercised Options.

             IX. Change in Control and Other Corporate Transactions

     In the event of a Change in  Control,  dissolution  or  liquidation  of the
Corporation, or any corporate separation or division, including, but not limited
to, a split-up, a split-off or a spin-off, or a sale of substantially all of the
assets of the Corporation  (collectively,  a "Corporate Transaction"),  then the
Corporation,  to the extent  permitted by  applicable  law, but otherwise in the
sole  discretion  of the  Committee,  may provide for: (i) the  continuation  of
outstanding  Options by the  Corporation  (if the  Corporation  is the surviving
entity);  (ii) the  assumption of the Plan and such  outstanding  Options by the
surviving  entity or its parent;  (iii) the substitution by the surviving entity
or its parent of Options with substantially the same terms (including Options to
acquire  the same  consideration  paid to the  shareholders  in the  transaction
described in this Article IX) for such outstanding  Options and, if appropriate,
subject to the equitable adjustment  provisions of Article VIII hereof; (iv) the
cancellation of such outstanding Options in consideration for a payment equal in
value to the difference between the fair market value and the exercise price for
all shares of Common  Stock  subject to exercise  (i.e.,  to the extent  vested)
under  any  outstanding  Option;  or (v) the  cancellation  of such  outstanding
Options  without payment of any  consideration.  Any such payment may be paid in
cash or such other consideration payable to the holders of outstanding shares of
Common Stock of the Corporation in connection  with such Corporate  Transaction.
If vested  Options would be canceled  without  consideration,  the Option holder
shall have the right,  exercisable during the later of the ten-day period ending



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on the fifth  day  prior to such  Corporate  Transaction  or ten days  after the
Committee  provides the grant holder a notice of cancellation,  to exercise such
Options  in  whole  or in  part  without  regard  to  any  installment  exercise
provisions  in  the  Option  Agreement.  In  addition,  the  Committee,  in  its
discretion,  may provide for acceleration of unvested Options in connection with
any of the alternatives described above.

         A "Change in Control" shall mean the occurrence of any of the
following:

(a) The "acquisition" by any "Person" (as the term person is used for purposes
of Section 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 any securities of the
Corporation which generally entitles the holder thereof to vote for the election
of directors of the Corporation (the "Voting Securities") which, when added to
the Voting Securities then "Beneficially Owned" by such Person, would result in
such Person either "Beneficially Owning" fifty percent (50%) or more of the
combined voting power of the Corporation's then outstanding Voting Securities or
having the ability to elect fifty percent (50%) or more of the Corporation's
directors; or

(b) The consummation of a merger, consolidation or reorganization involving the
Corporation (a "Business Combination"), unless the stockholders of the
Corporation, immediately before the Business Combination, own, directly or
indirectly immediately following the Business Combination, at least fifty
percent (50%) of the combined voting power of the outstanding voting securities
of the corporation resulting from the Business Combination in substantially the
same proportion as their ownership of the Voting Securities immediately before
the Business Combination; or

(c) The consummation of a merger or consolidation involving the Corporation
where the Corporation is not the surviving entity; or

(d) Any change in the identity of directors constituting a majority of the Board
within a twenty-four month period unless the change was approved by a majority
of the Incumbent Directors, where "Incumbent Director" means a member of the
Board at the beginning of the period in question, including any director who was
not a member of the Board at the beginning of such period but was elected or
nominated to the Board by, or on the recommendation of or with the approval of,
at least two-thirds of the directors who then qualified as Incumbent Directors.

                           X. Effective Date of Plan

     This Plan shall be  effective  on approval by the  affirmative  vote of the
holders  of a  majority  of the  outstanding  shares  of  capital  stock  of the
Corporation  present or represented  and entitled to vote thereon at a duly held
shareholder  meeting or by unanimous  written consent of the shareholders of the
Corporation in the manner required by Rule 16b-3.

                      XI. Amendment or Termination of Plan

         The Board in its discretion may terminate this Plan at any time with
respect to any shares of Common Stock for which Options have not theretofore
been granted. The Board shall have the right to alter or amend this Plan or any



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part hereof from time to time; provided, that no change in any Option heretofore
granted may be made which would impair the rights of the Optionee without the
consent of such Optionee; and provided, further, that (i) the Board may not make
any alteration or amendment which would decrease any authority granted to the
Committee hereunder in contravention of Rule 16b-3 and (ii) the Board may not
make any alteration or amendment which would materially increase the benefits
accruing to participants under the Plan, increase the aggregate number of shares
which may be issued pursuant to the provisions of the Plan, change the class of
individuals eligible to receive Options under the Plan or extend the term of the
Plan, without the approval of the shareholders of the Corporation.

                        XII. Compliance with Section 16

     With respect to persons subject to Section 16 of the 1934 Act, transactions
under this Plan are intended to comply with all  applicable  conditions  of Rule
16b-3 or its  successors  under the 1934 Act. To the extent any provision of the
Plan or action by the Committee fails to so comply,  it shall be deemed null and
void, to the extent permitted by law and deemed advisable by the Committee.

                    XIII. Exchange Provisions; Governing Law

     The Committee  may at any time offer to exchange or buy out any  previously
granted Option for a payment in cash,  Common Stock or another Option,  based on
the terms and conditions the Committee determines and communicates to the Option
holder at the time the offer is made.

         This Plan shall be governed by the laws of the State of Texas.



                            [Signature Page Follows]




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                                AMERICAN PHYSICIANS SERVICE GROUP, INC.


                                 By:  /s/ W.H. Hayes
                                      ------------------------------
                                 W.H. Hayes
                                 Senior Vice President and Secretary