what in the world is up with that???

Preflop = he checks, I bet, he calls
Flop = he checks, I bet, he calls
Turn = he checks, I bet, he calls
River = he folds.

I can understand folding to even a minibet on the river, but not folding instead of checking.

after all, i could have been on a missed draw as well....

While I like thoes players, I dont understand it. check/fold is a free chance to win the hand over just fold... even if it only works I time out of 100, thats still one time that you win.