Bumper stickers are like the original tweets. Only so much space to say something, they’re best when they’re funny, and a lot of them enrage  already very ticked off people. The smartest people use them selectively, and the dumbest people use them like gift wrapping on their car. Bumper stickers are a perfect, instant way to know if the guy next to you controlling a 10 ton high-speed murder machine may also be insane.

We’ve rounded up some of the insane ones, and the funny ones. Because if you’re speeding down the highway with one eye barely on the road, you might as well laugh before it’s all over. Or at least… just get a sense of how weird everyone is.