You have to roll up the windows first

　　The repairman decided to have a wee bit(一點，少許) of fun. So he told her all she had to do was to take it home and blow in the tailpipe(排氣管) until the dent popped itself out.

　　After 15 minutes of this, a lady - one of the woman's friends came over and asked what she was doing.

　　"I'm trying to pop out this dent, but it's not really working."

　　"Duh you have to roll up the windows first!"

　　一位女士把車撞了一個坑,于是就去修車。

　　修理工決定幽她一默。他告訴她,她只需把車開回家,然后從排氣管里往車里吹氣,直到凹陷處自己鼓起來。

　　這位女士如法操作了15分鐘。這時,她的一位女性朋友來拜訪她,并問她在做什么。

　　“我正在試著讓那個坑鼓起來,但這個辦法似乎并不管用。”

　　“嗯……你必須先把車窗搖上去!”