We've all been there. You're stuck in traffic, and idling in front of you is some schmuck with a bumper sticker that says, "Come any closer and I'll fart." Or maybe he's telling you that his kid made the honor roll, or that his kid can beat up the dude in front of him, whose bumper announces his own kid's junior high school success. Sometimes it seems like our highways are a bumper-to-bumper caravan of idiotic quips, disses, and proclamations of religious faith. Here are 25 people who are really asking for a fender bender.