True story: A woman named her son Damien (spelled that way, which I think is not the spelling of the character in the movie.) Around the time the first "Omen" movie came out, she got a call from his school. On the back of his head was painted 666. He denied knowing anything about it. His mother was asked some pointed questions.
(Eventually he confessed to her that he had in fact done it himself).

He had been a hellion before that too--but now he's a very successful businessman--and a generous person.