Via cupofcoldsick, dig Peter Falk's story about John Cassavetes at a Lakers game:

"John and I were at a Lakers game, and John got into a beef with a guy seven rows in front of us. They were going at it pretty good, trading remarks - the crowd was now following their exchange when the guy in front suddenly turned, pointed at John, and said, β€˜Do me a favor - go fuck yourself.’ John instantly shot back, β€˜Stand up and say that.’ The guy stood up, 6’2”, looked down at John, and said, β€˜Go FUCK yourself.’

John, ever the director, said, β€˜Now sit down and say it.’

The crowd roared - so did I - even the 6’2” guy broke into a smile as he started his downward journey."