[jwsly1]

Hard to say. Were all his preflop raises of this amount? It is possible for someone to have a streak of good hands and he has the chips to push around, but I would be curious. If you are planning to go angainst him, I would just push. Make him choose now, and don't let him flop something to bet back at you with. There is a chance he may just fold - if he calls you have a decent (or at least close to equal) chance against almost any hand expect AK.

It takes a bit of courage but sometimes you have to fight back. But again 3 out of 4 hands is not a whole lot to go on yet -- it is possible that he actually had three good hands.

GL