MG,
Ok, in his particular mind, he already did trap me when I raised him. You on the other hand may not have felt that the trap was fully set - but that isn't him. In your mind (and mine too btw)
check-bet-raise-call
is the trap
He on the other hand can only see
check-bet-raise
As in chess, the better players see more moves ahead (this isn't literally accurate btw but it is a common and well accepted fallacy so if there are any chess masters out there - don't get anal on me
Regarding changing my mind by saying he would get overaggressive - the term 'overaggressive' was yours (and I agree that it would be an error for him to re-raise) but the critical point is that *he* would think it's time to spring the trap and that I shall be pot committed at this point. He would think his trap worked when in actuality he would be pre-mature.