I used to have on my car at different times....."Boldly Going Nowhere" and "Don't Follow Me, I'm Lost" The one I have now says "Maybe The Hokey Pokey Is What It's All About".

The funniest experience regarding a bumper sticker I had, was with my mom when I was 18. We pulled up behind a truck and the bumper sticker said "Honk If Your Horny". My mom starts to lean on the horn and the guy in the truck started to throw his arms around and you could see he was cursing...yelling....looked like he was having his ass bit he was bouncing around so much. THEN it hit him and he just waved back to my mom looking sheepish.