Hands from the Bellagio ME when in a "short" stack

[Firefly]

Hand #1 sucks. UTG could have anything from an overpair (77-AA) to big diamonds (or Something like A2 [img]/images/graemlins/diamond.gif[/img] or 78 [img]/images/graemlins/diamond.gif[/img])
I just dont see him doing this enough with some one pair hand (like A6) to justify calling, plus you have someone to act behind you. I can fold.

Hand 2: I think i push. Alternative -call and c/r all-in on a non-A board

Hand 3: I think i check here. I really..really hate this spot. What you do next is based on the action that follows you (cop out i know)

Hand 4: Push i think. Position really doesn't matter if Levi is betting any flop, because you can't really tell what hit him.
Edit- confused villan