Tee hee... just ran across this thread! I love smarty-pants bumper stickers!
Some more funnies:
"I'M NO LONGER WITH STUPID"
"I GO FROM "0" to "B@#!" IN 2.5 SECONDS"
"I'M RETIRED - GO AROUND ME"
"PMS ON BOARD"
"BEER: HELPING WHITE GUYS DANCE SINCE 1842"
"YOUR KID'S AN HONOR STUDENT - BUT YOU 'RE A MORON"
"SURE I KNOW JACK SH@# - I DIVORCED HIM"
"YOUR PROCTOLOGIST CALLED - HE FOUND YOUR HEAD"
"OUT OF MY MIND - BE BACK IN 5 MINUTES"
"I BRAKE FOR... OH SH@#! NO BRAKES!"