Does anyone know what this bumper sticker means? It's a round, white sticker, about 4 or so inches in diameter, with a black 8 in the middle of it. Sometimes there's a bar code-ish thing on the bottom but not always. It's almost ALWAYS on really nice, fancy cars...Lexuses and Benzes and the like. If anyone has any idea what this is for, I'd love to know. Very often it's placed on the lower left hand bumper, but not always.