Yard signs and bumperstickers

I'm curious what makes someone think they can come up to my car and peel off one of my bumperstickers.  They're messing with my property, and that's against the law.  My wife has wondered if maybe someone has put a bounty on bumperstickers like they did on Prop. 8 yard signs.  That's not much of a sign of tolerance.  It's more like vindictiveness and vandalism.  It is also an attack on my freedom of speech.

If this is what it will be like if Prop. 8 fails, I sincerely hope it does not.

Vote Yes on Prop. 8.