The shop owner saw that she was blonde and decided to have some fun.  He told her to go home and blow into the tailpipe really hard, and that would make all the dents pop out.

 

The blonde went home, got down on her hands and knees and started blowing into the car’s tailpipe.  Nothing happened.  She blew a little harder.  And still nothing happened.

 

Her roommate, another blonde, came home and said, “What are you doing?”

 

The first blonde told her how the repairman had instructed her to blow into the tailpipe in order to get all the dents to pop out.

 

Her roommate rolled her eyes and said, “Helllllooooo … ya gotta roll up the windows!”