Hero pushes and laughs when villain turns over KJ....then gets pissed when a jack turns, and happy when a T rivers to give him a straight.

At this level, I put the villian on the range K9+/Ad4d/JdTd. I think the chips you gain by pushing and having him fold/calling with you winning outweighs the time you get stacked by KQ/44, so I would PUSH.