There must be some really cool people in my city, because I rarely see those BOB signs, pretty much never.
And I had to laugh at myself just now, because with the mention of those truck balls which I had never heard of before, I thought to myself "they can't mean that the driver hangs a set of fake balls somewhere off their truck..." and I image google it and alas....yes, they actually hang balls off the back (usually) of their truck...oy vey. I've never seen those around before...but I just might have not been paying attention to the back bumper that well. There are a lot of crappy drivers in my city, so the focus is best put on their driving skills and other things, instead of car graffiti and the like. :P