英语笑话:A Whole Hour 整整一小时

Mr. Brown arrived for work an hour late. His clothes were torn and tattered. He was banged and bruised, and he had one arm in a sling. His boss was purple with rage."It's ten o'clock," screamed the boss, "you were supposed to be here at nine. What happened?""I'm sorry," explained Mr. Brown, "I fell out of ten-story window.""That took you a whole hour?"