SB is pretty good

15/30 (3 handed)

I get 7 ,3 in the BB.
Button folds, SB completes, I check.

flop is A ,7 ,4
Sb bets, I call.

Turn is the 5
Sb bets, I call.

river is the J
Sb checks...

Way above my limit, but I'm taking the
free showdown here.

I just think anything that calls you for $30
has you beaten.

I'd check it, pot's small. He may have been open ended on the flop and turned a pair, flopped bottom pair, or has just been bluffing the whole time. I'd check it, and get the chance to see what he had.

Don't think of it as $30. Think of it as one BB.

SB's line could be a 4, a 7 , or maybe something like 89. He shouldn't be scared of the A since you never raise. And the Jack is unlikely to matter to him.

I think it is close to betting and checking. Bet if you think there is a chance of him callin with T-high. Otherwise, I think he folds most of the time you bet when he is beat. The only thing I see him calling that you beat is 4-x.

or 65...

but i think you guys are right.

I agree. He has to put you on some kind of a made hand, since there are almost no draws out there.

So I think it's a check - how many 4-x hands would he open-complete with?

i bet because im stupid. He called with T7 and i suck at poker and should consider killing myself./

I was wondering if a raise somewhere in there
(turn, maybe) might have pushed him off of this?

that's too aggressive in a pot this small, imo.