Holy crap, I just saw this. I have some real interesting cars at work. I had one today with stickers/decals. A big one said 'DILLIGAF' and a smaller window corner one had the 'if you're going to ride my ass, pull my hair' that I've seen many times. FYI, it had 195/60/15 tires on crusty aftermarket rims that showed rubbing marks front and rear that were not that bad, and the driver was at least 250lbs.
I see a lot of other interesting cars like the ones on this thread, but I'm not going to get into posting things I see at work. As much as I could, and I love posting my own crap sometimes, it's a line I don't cross.
I just wanted to say I'm enjoying the thread