--snip--
I also have security stickers pasted on all the glass.
--snip--

A guy I used to know put NRA and Sherriff's Association stickers on all his
vehicles. He neither owned a gun nor knew any law enforcement types, but
felt it paid to advertise.
To my knowledge he's never had a problem with anybody messing with his
vehicles... of course it could just be good luck and clean living, but you
never know.

Cya,
Robert