Thanks to: Jennifer Letcher Tulsa OK USA.

     Cal was out driving in the country, seeing how his new car handled the curvy roads at high speeds. As he rounded a corner, one of his tires blew.
     When he got out of the car to change the tire, he noticed that he had stopped in front of the state mental asylum. There was also a man sitting on the brick wall in front of the facility.
     The driver went about his business, not paying any attention to the guy on the fence. He first took his tire iron and jack out of the car, and got the car jacked up. Then, he removed the hubcap. Next, he removed the six lug nuts, and placed them in the hubcap for safekeeping.
     About this time, the guy on the fence decided to start a conversation. This startled the driver, and he reeled around quickly, knocking over the hubcap, and the lug nuts fell into the sewer drain.
     The driver gets angry with the guy on the fence, shouting, "Now look what you made me do. Now I'm going to have to walk to town to buy some new lug nuts. Just go back inside and leave me be."
     The guy on the fence says, "Why don't you just take one lug nut from each of your other three wheels, and use them on this one. That should hold it steady enough for you to drive the car to the auto parts store."
    The driver asks, "That's a brilliant idea...then why are you here?"
    The guy on the fence replies, "I'm just crazy, not stupid."

卡尔买了一辆新车,他就去郊外开,想看看在弯曲的路上高速行驶中车的操控性能. 他在一个转弯的地方,一个轮胎漏气了.

他下车去换轮胎的时候,发现他正停在一个国立精神病院门口,有一个人坐在门前的围墙上.  

卡尔低头做他的事去,并没太注意那个围墙上的男人.他拿出千斤顶, 顶起汽车,然后他掀起轮踏盖,接下来,旋出六个拉栓, 放在轮踏盖里. 

这时候,坐在围墙上的男人想和他聊一聊了. 这让卡尔吃了一惊.他在旁边快速地走来走去,撞翻了轮踏盖,并把拉栓都掉到下水沟里去了. 

卡尔被这个围墙上的男人气坏了,大喊道:”你看你都做了什么! 现在我只得走回镇里去买几个拉栓来,快回到里面去,离我远一点.”

围墙上的男人说,"你为什么不从其他三个轮胎上各卸下一颗螺丝,把它们装在这一个轮胎上呢. 这样足够能让你把车开到汽车零件店了."

卡尔问:"这个主意很妙...那你为什么会来这里?"

围墙上的男人回答:"我只是疯了,并不笨."