Playing against a 80% VPIP 30% PFR jackal?

[DJMaytag]

So i rounded up a bit, but these stats are pretty close against a few of the types of crazies i've found myself up against in the past few weeks, and i'm at a loss for how to play these guys, other than flopping quads or a str8 flush.

I've been in some pots with these guys who try to win every single pot and call despite the horrendous odds (and often with some horrendous cards in the case of some flush draw chases). How the hell do you play against someone like this, knowing that there is NO amount of $$$ that will get them to fold? I've been losing my stacks a lot lately trying to protect my hand from them improving to something better, but it's just not working. I've been reading all my books over again, but many of these assume you're playing against a rational opponent, which almost none of these are.

Any thoughts other than folding everything until you get AA and hit a set or a FH with it (or better)?