There are a lot of weirdos in NYC. But behind every one of those weirdos is a story as rich & wonderful as the city itself. For instance, their story might be that they're secretly one of the biggest rock bands in the world, or the host of the Tonight Show in a fake beard and sunglasses.
Just goes to show you should take a break from your busy rat race and appreciate the people around you. Unless you're absolutely certain they're not famous. Then ignore them.