Ever seen that movie with Rick Moranis (I want to say it's called Bully, but I'm not sure) where he's an author and he's at a book signing, but everyone just keeps thinking he's an employee and they ask him where the latest Stephen King book is, and finally he's get so fed up that when a stoner asks him what his book is about he tells him it's about a cemetery that was built on an Indian burial ground...
For some reason I was reminded of this as I read the post. Hopefully though you've never been in that type of situation.