so you raise a big bet pre-flop you get called ur holding AA. if you get called after betting 4,5x the big blind you have to put on opponent on either KK, AK, or QQ JJ. now if the flop comes how you explained in your post, do not hesitate to call no opponent is calling a big bet with 3s4s. (unless ur playin with gus hansen) ha jk. but if the flop comes AAsJs and the turn is a 10s, river Qs... well now you might be in some trouble, if this situation should ever miraclously come up which it probably won't. then that and only that could be the only possible reason for you to lay that hand down. other then that, i'm sittin pretty on AA, with a flop of AA2.