[Andy B]

I have been guilty of overplaying Aces heads-up with a maniac many times myself, but when the raising war keeps up, you have to figure at some point you might be beaten. You only have one pair, after all. I might three-bet fifth street if I was feeling particularly frisky that day, but I would revert to checking and calling at some point after that.

Sounds like this guy is going to lose all of his money eventually. I would want to be around when he does.