I also answered to call with any two. On any flop without an Ace you could raise him, representing a set or two pair, and take your foot off the accelerator if he comes back at you, depending on his style of play. There may even be an argument for calling when you"re behind on the flop, given that he knows you saw his cards, he may think you are trying to trap him. He might then check the turn, giving you a free ride to the river.
If you do end up ahead, you could trap him for a fair bit if he can"t lay those aces down, so the implied odds are pretty good.
Of course, if the flop has an Ace, and you haven"t got your flush or whatever, then you just lay it down. You lose $7 in this case. Stick the other $49,993 on a horse and call it a day!