The best Kenny dog I've seen was about 20 years ago at the Philly Expo. He was playing a 19 or 20 year old from NYC 8 ahead for 4k. (roughly, memory fades). Opponent was in with Scooter. It was about 5am and Kenny was on the hill. It was hot, and a drop of sweat literally fell off of his forehead onto the table and made a spot. His opponent (or Scooter, I forget now) runs up to the table and points at it and starts blabbing that he's sweating and gonna dog it. Sure enough, Kenny dogs it, and the other guy comes back to win the entire set from there. I saw this with my own eyes in person.
Unfortunately, the opponent died young in his 20's or early 30's of an overdose a few years later. I can't remember his name, he hung out with Ginky's crew from what I heard. Clean cut with dark hair.