QJ, pass the marginal?

This hand is not too interesting, so pass it up if you wish.

BB is my buddy, 43/9/1.4 -- I've seen him play small pairs very aggressive pre and post-flop.
UTG is my best buddy, 74/12/.75 -- I have a gazillion reads on him. He has bet with no hand several times and called to the river with garbage hands, 3rd pair, K-high, etc.
MP2 is a semi-decent TAGish player, nothing special. Also he's the table coach, and considers me to be a decent player.

full tilt (8 handed)

pre-flop: Hero is the button with Q[img]/images/graemlins/club.gif[/img]J[img]/images/graemlins/heart.gif[/img]
UTG calls, 2 folds, MP2 calls, 1 fold, Hero calls, SB calls, BB checks.
Flop: (5SB) K[img]/images/graemlins/spade.gif[/img]3[img]/images/graemlins/club.gif[/img]J[img]/images/graemlins/diamond.gif[/img] (5 players)
checks to MP2 who bets, Hero folds


Pre-flop, I was planning on isolating UTG with a raise, but when MP2 limped, I came along too. Post-flop I considered getting this HU with the TAG, but figured the donks would come along anyhow and decided on folding. Do you play it another way?