Hand 1 I'm really not sure what I should be doing. I fist pumped, but I'm not sure if isn't closer than I first realized. It IS a 1k shove into $12 pot afterall.
I don't think pot size has anything to do with it - you can ignore the pot and just consider if you have 50% equity vs. this guy. We don't know for certain what he does this with, but we do know a few things:

1. Generally, if he has a hand that beats you already (TT/T9 are both of them) then his shove is retarded. He has no reason to suspect you have better than a pair of tens or even a weak pocket pair, and no reason to think you'll call his shove. Not to say that he's not capable of retardation, but I wouldn't immediately guess that he had the nuts here - donks usually slowplay the nuts.

2. So what do donks not slowplay? Trips, overpairs, TPTK, and bluffs. I suspect that his range MAY have all of those in it - 9x, JJ-AA, AT, maybe JQ or 78. It probably doesn't include all of those but those are likely candidates. He might even be getting stupid with an underpair because he thinks he's good or he likes to bluff, although that's the worst kind of retardation I can imagine.

So - I'm fistpumping a lot and breaking my mouse button from the superfastultramegacall. If he has me beat, I take a note. And I root for my three outs to ride in, if he has T9.