Your Favorite and Funniest Bumper Stickers On Cars and The Internet

Everyday we pass a car that has one or more bumper stickers. Some of them are super funny that you can't help but laugh. I try to read as many as I possibly can, and yesterday I read two super funny ones that I had to share.
So do you ever pull up beside or behind a car and read a bumper sticker that makes you laugh, but it also says something that you would be too embarrassed to put on your car? Those seem to be the best ones! Now some I can't post up here, but here are a few that I have read in the past couple days.
"I'm ashamed of what I did for a Klondike bar"
" I Love Free Sex"
"S**T Happens When You Party Naked"
I also went online to cafepress and zazzle see if I could find some that were even better so here you go. Enjoy!

These are just a few bumper stickers that made me laugh when I saw them. I'm sure there are a ton out there that are way funnier. What is the funniest bumper sticker you've ever seen?