Yes, I do, but:
-Not with KK
-Not NEARLY as often as I get in in ahead and lose.  I hesitate to speculate what the ratio would be.
As for my KK stats, do you mean for all time?  Cash only?
For this month, all limits (including a bunch of limit play), I was dealt KK 39 times and won a whopping .21 BB/hand.  I netted more with every other broadway pair.
For 2008 (and I played VERY little cash this year), it looks like I was dealt KK 123 times and netted 1.12 BB/hand.  AA, JJ, and TT all beat that.
And just for kicks, let's check out KK results for my all time PT tracked cash game play....
Dealt KK 1396 times
85.03% won
2.96 BB/hand
Up over $33k with it
Only AA has better results
On a related note, I'm an all time winner with all PPs except 33.  Interesting.
So yeah, I guess I don't ALWAYS run like shit with KK, but it sure feels like it sometimes. 
