[Lurshy]

Call me weak, but I check behind. With the cold calls, he may have a pair, but could easily have been on the club draw.

I simply ask myself the question, If I bet and he comes back over the top will I puke?

There aren't too many losing hands that will call another bet on the river, maybe a weak king, but there are a bunch if hands you can lose to. The risk reward doesn't seem right. Check behind.