Worst possible situation? he has flopped the nuts with J-Q. And you are ONLY 15% behind the nuts here. You are ONLY 10% behind a set. You are ahead nearly 2-1 against two-pair. Looks like there is 2875 in the pot, with 12k behind the raiser. Even in the worst case scenario, (HE HAS THE NUTS), you have odds to get all the money in. So you are not going to fold here. If your concern is, how do I extract the most value? In scenarios where I have a big draw, and I figure i am ahead with equity in the hand right now, I get as much money in the pot on the flop as I can. You lose half of your hand value when if you brick the turn. So get the money in when you are ahead. I raise to 6K here, not afraid to get it all in. Its possible you might even have some fold equity :). Depends on what kind of donkament you are playing I guess.