O god, I wouldn't even consider NOT getting it in on this flop if some jerk-off wanted to here. I'm pretty certain I've never folded a flopped set (on the flop that is). It would almost be asinine to, given that you have at least one out to the nuts . But even if there are 3 to a straight/flush on the board, you still have considerable equity (~35%) even if they did flop it. Easy to get it in (given you are getting the right odds obv.)