Several years back I was at a concert and people kept coming to the guy next to me and getting his autograph, so after awhile I asked someone who he was. They said Jeff Gordon. I don't watch Nascar but knew the name. Chatted with him a bit and then at work the next day told everyone that I hung out with Jeff Gordon the night before. Then someone pointed out that Jeff Gordon was actually in another state preparing for a race that started in just a few days. Oops!
I think it's pretty funny that the guy signed autographs all night though!