20/40 live .....fold to check raise on turn?

[Hoi Polloi]

As other posters have suggested he *may* be playing something you beat this way. As he seems very predictable, I would like to SD in order to find out whether he's got a set here (2 pair seems remote) or whether he's capable of making this move with AQ, etc. or a flush draw. If not, then you can play that much more confidently against him. If so, then you win the pot, plus you have a better read. This is +EV call down either way, IMO.