anyone have unpopular political bumper stickers and has anything happened to your vehicle?

i asked this last night but noone responded.
i see so many obama bumper stickers on cars.

I sit in traffic for a few hours a day and would like to display my own bumper stickers, but i think the kind i want to display will get scratches and damage to my vehicle, such as
"dont blame me, i supported ron paul", or " ill keep my freedom and guns and u can keep the change", and "real americans dont let their govt run amok".

i live in very liberal cali and i have seen ron paul signs trashed.

so anyone has some input with your experience on this, in a liberal place? any damage to ur vehicle?