Graffiti is a crime and you should NEVER EVER do it. However, if you ARE going to vandalize something, you might as well make it hilarious. I mean, in a way, these people made these things better. Before these were just well-meaning signs, and now these signs are spreading laughter AND knowledge. It’s a win win! In the pics below, check out some of the funniest and best funny genius smartass vandalism ever seen. Which was your favorite?