re: a-hole celebrities and here are the rules:

I regularly waited tables for Lex Luger. He and his family were the nicest table. It almost made me nervous how well behaved his kids were (like he would beat them if they did anything wrong... not saying he did. But it was almost stepford wives level obedience).

Buff Bagwell was super friendly.

Keith Brooking was awesome, but his fiancee'/wife/girlfriend was a witch.

Most of the Falcons' offensive coaching staff were regulars and great people. This was Dan Reeves era.

My mother-in-law had an encounter with John Smoltz. She said he was a total jerk. She was a nurse and Smoltz's later to be ex wife was in the hospital. In my head, it was understandable for him to be abrupt (preemptively telling them to leave him alone).
But my lesson learned was to be sweet to the nurses and doctors who will be looking over me while I'm under anesthesia.