When I was in LA, a few of my friends and I went to a comedy club that Bill Burr randomly showed up to. The girlfriend of one of my friends was on her phone almost the entire time and Burr called her out on it. She told him that she was selling a car and he said "okay" and continued on with his set. Then she kept typing away and folding napkins so he started freaking out and getting angry. She was foreign and didn't really understand all that he was saying so my friend started translating for her. Burr freaked out at him and then he adopted a Russian accent and started saying things in Russian to Burr. Burr said "Oh smurf. Now I'm the asshole making fun of foreigners" and then finished his set.

Afterwards we talked to him and he was pretty cool. Gave the girl a hug and a shirt, my friend and I got a handshake and then he left.

That is my only celebrity story.