Many people have to work on the weekend．Some people do not mind．Other people think it is terrible． One man thinks that working on the weekend can be dangerous．He is Graham Coates. Mr. Coates worked in an office in Brighton, England． On Saturday, May 24, 1986, he went to the office to do some work．When he got in the elevator to go home, it stopped between floors．Mr. Coates could not get out of the elevator. He was trapped（困住了）! He started to shout, but no one heard him． Then Mr. Coates remembered that it was a holiday in England．No one was going to come to work un