[andyfox]

I think the most you cost yourself was $50. If he folded on the turn, he didn't have all that much. If you don't cap the flop, he likely checks behind on the turn. Maybe a card comes off that earns you a bet on the river, but maybe a card comes off that costs you a bet.

One thing that sometimes works against 2+2 types, is to just call on the flop and then bet out on the turn. 2+2ers know this is often a bluff into a paired board and will raise you on the turn.