All of these "I'm a genius -- you're an idiot" proclamations only make life more difficult for us Prius owners who prefer to fly quietly under the radar, pocketing our gas savings without getting into a partisan spitting match with other car owners. The only bumper sticker I've got on my Prius is an HOV lane access sticker. It incites more envy out here in California than any smug declaration of MPG or "green" convictions ever could.