[Mr. Orange]

I can't see how bettng can be right here. I check/call the river but fold if it's 2 bets. If CO is as bad as you say I would probably even overcall if UTG leads and he calls.
The tough question seems to be what if UTG checks and CO leads given that UTG is described as tricky. I would call in that case then throw my mouse in the vomit pile on the ground when I get C/R'd.