In high school a friend of mine insisted that he was a model, and not just any model, but one who regularly traveled around the world. He didn't exactly have typical model looks and never seemed to be out of town and there were a dozen other things that pointed out how ridiculous the idea was, but he insisted on it for a long time and no one ever challenged him on it because, well, I don't really remember why. No one ever believed him for a second though.