Crass but Sooo Funny!

I have seen two bumper stickers lately that really made me laugh. I think it was the shock that they were actually on cars that made it so funny. The first is on a 'friends' car...it says "My other ride is your mom" and the second was just randomly seen. It said, "Your little princess is my dirty little whore" Maybe as a girl I shouldn't really find that funny, but I do..so sue me. I'm sure it offends someone somewhere. The things people do.