[J.A.Sucker]

I don't think so. I haven't (knowingly) played with this guy, but I stand by my original assessment. People pressure those they think are running bad. You have a great hand, and the JJ-flop isn't as scary as it seems when you have AA (is he cold calling with KJ? Unlikely.) Another line of merit is to bet the turn, get raised and bet the river out, calling a raise if it comes then. Depending on the player, this is better still. If the dude has quads, then so be it.