QQ - Slow down too soon on paired turn?

[Knoler]

I'd raise on this river, and call a 3-bet based on the fact that he's shown an ability to make the desperation bluff.

I like calling down otherwise, because unless he's truly off his rocker, he's not going to be calling your turn or river raises with many hands that you can beat -- and you'll get 3-bet with many of the hands that beat you.

-Brian