opp played poorly on the second hand. Pushing like that with the nut straight? It doesn't make sense.
The same thing burned me at molinero's game once, when I had AJ and flop came AJQ. Guy who's not real good pushes everything in. I'm assuming the made straight would try to milk me a bit, but I assumed wrong. KT for my stack.
EDIT: I just realized he only had a bit less than the pot sized. Not that bad a play after all.