One of my favorite sites on the internet is Snopes. If you haven't heard of it, it is a page that investigates Urban Legends. If I get an e-mail from someone talking about this situation or that event or beware of this, Snoopes is my first stop. I was browsing their site, and came across this article talking about secret signs, etc…. I thought I would link to it just in case anyone else reading this may be interested.