Donked by a 2+2er

[StellarWind]

How many outs do you think UTG has and will fold? The OESD and the flush aren't going anywhere. I'll give him a gutshot, an overcard, or small pair for you to *try* to drive out. Maybe 3 outs.

But wait, you are assuming you are ahead. SB must have something and if it's not a king it must be outs. Often you'll get rid of UTG's outs only to discover that SB has those outs shadowed. In particular, you best hope is to drive out an overcard, especially an ace. But you really hope SB has a small pair and isn't the ace apt to be his kicker? Another likely possibility is that they both want the five. Maybe UTG has a cheap gutshot and SB has gutshot plus small pair.

Overall killing UTG is not worth the trouble. It's just too unlikely that you will lose the hand because you didn't raise. Against that you will often lose the hand because you do raise when Villain has kings up and three bets your outs away. Plus you lose the chance to win the money UTG would have called the turn and possibly the river with.