[ethan]

There's 18.5K in the pot going to the turn, he bets 8K, so the pot's 34.5K before you raise. Your half-pot raise is fine, you might go a little higher, but you don't want to push him out of the hand. I certainly wouldn't raise any less. With your raise a river push is 1/2pot, which is right about where you want it with someone who'll pay off with mediocre hands. Any reason for betting 28K? I can see betting 20K, and I can see pushing, but I don't think I'd ever bet in-between.

Versus someone playing this donkish, sometimes things will go horribly awry. Just an unfortunate time for it to happen here.