Superstitions....Crazy? Or not?

People all around have some pretty unique superstitions, and I wonder as I think of those people, "Are they crazy?" Now, most superstitions are perfectly normal and those are the ones that are more widely known. But the one I wonder about are the ones that you don't see very often see out on the street. I don't know many of these so it would be greatly appreciated if someone(That's you. Yeah, you looking at the screen!) could comment about some semi- strange superstitions that they see in their neighborhood. Bye, and remember, I'm watching!