The Faster you are

Tom P., 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." Tom was quite annoyed at this and retorted, "Don't you know who I am? I'm Tom P." "Then it won't take you long to run home and change, will it?" replied the bouncer.