I play frequently in a live game with a guy like that. Raises almost any two if he feels like it, including what seems to be his favorite hand, a face card with a dangler low card (probably not even suited). If you re-raise him he calls every time unless you really bring the thunder. If you raise first pre-flop, he calls with the same range he raises with, which is everything except for the absolute worst garbage - and he even likes to call with 72o just to be perverse. Post-flop he bets any time you check, and calls 75% of the time if you bet. Overall, he pays me off a lot, but when he's hitting he's hugely frustrating.