I don't care to pay for the honor of advertising for any company but that's not really my point; you're unlikely to get shot by a Coke drinker for wearing a Pepsi T-shirt. I'm more interested in public emblems that carry a lot of emotion baggage, either political or social.

For those of you that do have, say, window stickers- where do you draw the line? I see a lot of NRA emblems...might that lead a thief to break into your car hoping to score a gun? Or will your Grateful Dead sticker lead him to break into your car hoping to score some weed?

Good point though. I wouldn't really want my car to be a billboard for the dealer I bought if from, for instance.