5-10 nl shorthanded, and this guy keeps making it $110-$250 to go

[creedofhubris]

I'm sitting at a 5-handed NL game and the guy to my left is one of the wildest i have ever seen preflop. He likes to bet big. Sometimes he just makes it $40, but often he's making it $110 or $250 preflop. He's reraising preflop huge with AT+ and possibly any pair (I can't tell since he's not showing down).

He's somewhat more sane postflop, but if somehow the pot comes in unraised, he's often putting $100-$150 bets into $30 pots on the flop.

How do I proceed, especially considering he's on my immediate left?

He starts out at $1000 and builds up to $2000; I have him covered.

What I ended up doing was limping AKs, and pushing when he made it $250 preflop. He turned out to have JJ, so this wasn't the optimal solution, but it was the only one I could think of.