hand 1: prob fold. I like punching it in on the flop though. So many hands beat you by the river. If you're gonna call, do it bc he might be valuetowning you with something worse (not sure what), not bc he has set or air (i disagree with that). your hand is pretty well defined at this point, at least to me.

hand 2: you're in a far better situation to tell what to do here. What does he cc in position with then call a 3-bet oop with after the original raiser folds? i'd normally get it in, but like I said, it's far from unheard of to make a fold in these kind of spots.

he's getting bad set odds so stack off every time regardless?
I've touched on this before, but this logic is lolbad. Our goal isn't to be +EV, it's to maximize expectation.