E100 PLO on Martins Poker.
SB is a maniac who raises preflop with every hands and bets the flop 90% of time. He is hyperaggressive and willing to play for his stack with any draw, but only when he is the aggressor. When he gets checkraised on the flop he usually slows down. He's taken some wild swings and was up to E500, but is now down to E100.
I've been calling his raises with strong hands quite a few times only to flop absolutely nothing. Only once I flopped a decent draw, and I took the pot from him with a raise on the flop.

I have 22TT in the BB; a few limpers, SB completes; flop comes
289 with 2 clubs, which I don't have. The SB does not bet out, and I bet. Only SB calls. Turn is an offsuit 3. SB checks, I bet pot, SB calls again. River is an offsuit A. Maniac now leads out for the full pot. Call or fold?

Some thoughts: since maniac plays any made hand as fast as possible I can be sure he doesn't have a set on the turn, although he could have made aces.
He would lead out both on a complete bluff and with the nuts.
Both folding the best hand and paying him off would be pretty disastrous given the fact that this may well be the only chance you get to play in a big pot with him.

When I play against an aggressive player like that, I like him to use his aggression against himself. I also like to try to manage the size of the pot according to the strength of my hand, by check calling or check raising more than normal. Essentially, I want to get to showdown with this type of player as cheaply as possible with medium strength hands, such as bottom set, non nut flushes and non nut straights.

Since you are not going to get him out of the pot if he has any type of draw, I will give a free card even with a strong hand. My theory there is that I would rather take down 3 medium sized pots that get outdrawn for my stack. I also want to give him the chance to represent my hand if I have a monster.

The way I would have played the hand, would have been to bet the flop. When he called, I would have checked on the turn not because the 3 was scary, but because it setup a river card that wasnt scary. Any card other than a K that doesn't pair the board, would create a straight. I would check the turn with the intention of call the river regardless of what it was (unless it was a 2).

As Monk stated, you dont have to find his hand in the cookie jar to many times to make the play even EV.

Tom