I bet this happened in Australia.
Michael Johnson, the Olympic gold medal runner, was on his way to a club with some friends. At the door, the bouncer turned to him and said: "Sorry, mate, you can't come in here - no denim". Michael was quite annoyed at this and retorted: "Don't you know who I am? I'm Michael Johnson". "Then it won't take you long to run home and change, will it?" replied the bouncer.