This blonde woman had a minor fender bender and dented her car up a little bit. She took it to the mechanic who realized that she was a bit ditzy. So, he decides to mess with her. "Mamn, all you have to do is blow into the tailpipe and the dents will pop back out. I wouldn't feel right charging you for it when it's something you could do at home." She is in awe that it's so easy to get rid of the dents, so she goes home and begins blowing with all her might into the tailpipe until she nearly faints.
She looks at the location of the dents, and they are still there. She is dumbfounded, so she goes and gets her roommate who is also blonde. She tells her what the mechanic told her and that it doesn't seem to be working. The roommate turns to her friend and says, "Are you stupid?? You have to roll the windows up for that trick to work!!"
LOL I love that one.