If you're playing above your bankroll -- whether actually or psychologically -- then this kind of crap hurts a lot. I know because it happens to me and I get pissed -- but much more pissed at the $50 games than at the $20 games. (For me, my AA re-raises get called by junk like K3o and then they hit a K and a 3 on the flop.)
Anyway. You have to have to have to call in hand #1. Ice is right. No doubt at all.
Hand #2 you can lay it down. Maybe you're ahead, but probably not. I hate having AA unimproved against a guy moving all-in on the flop. I haven't folded it yet, but almost every single time I have wished that I did.
Put it this way: set over set is rare, but set over overpair is common as hell.
It may or may not be a +EV play to call hand #2, but it's definitely a variance-increasing play. And increased variance can hurt a lot.
So if you're in a place where, psychologically, you are having a hard time with variance, resolve ahead of time to fold these. "I, MVPSports, hereby vow that -- for today only -- I will lay down my AA or KK unimproved against an all-in raise on the flop."
Another option is to get some dice and have them next to you while you play. Sounds stupid, I know, but maybe it's worth trying. If you're in a situation like this, roll the dice, and only call if you roll a 7 or higher (or whatever you choose). That way nobody can make a move on you "knowing" that you'll fold, but you'll cut down your variance a bit. Plus, when they do have the set and you call, you can blame the dice.
