Exhibit 10.18 PROMISSORY NOTE --------------- NEWPORT BEACH, CALIFORNIA MAY 27, 2003 FOR VALUE RECEIVED, the undersigned, Rapidtron, Inc., a Delaware Corporation (herein called Maker), hereby promises to pay to the order of John Creel, a resident of California (herein called Holder), in lawful money of the United States of America, the principal sum of FIVE THOUSAND Dollars ($5,000 US), with interest thereon at the rate as established monthly by Wells Fargo for Equity loans with a floating rate. The term of this Note is ONE HUNDRED AND TWENTY (120) days. This term can only be extended by agreement of the Holder. The Holder will pay the monthly-accrued interest charged by Wells Fargo on the fifteenth of each month starting in June. This Note and the rights and duties of the parties hereunder shall be governed for all purposes by eh laws of the State of California and the laws of the United States applicable to transactions within such State. MAKER HOLDER /s/ Steve Meineke /s/ John Creel - ------------------------------ -------------------- Rapidtron, Inc., John Creel By: Steve Meineke General Manager