Once upon a time there was a very large office building in a very large city.

Once upon a time there was a very large office building in a very large city. This building had 40 levels: level 1, level 2, level 3, level 4, level 5, level 6, level 7, level 8, level 9, level 10, level 11, level 12, level 13, level 14, level 15, level 16, level 17, level 18, level 19, level 20, level 21, level 22, level 23, level 24, level 25, level 26, level 27, level 28, level 29, level 30, level 31, level 32, level 33, level 34, level 35, level 36, level 37, level 38, level 39, and level 40.One day the owner of the building decided to get a PA system installed onevery level, in case there was ever a fire and everyone in the buildingneeded to be contacted at once. The system was installed on every level:level 1, level 2, level 3, level 4, level 5, level 6, level 7, level 8,level 9, level 10, level 11, level 12, level 13, level 14, level 15, level 16,level 17, level 18, level 19, level 20, level 21, level 22, level 23, level 24,level 25, level 26, level 27, level 28, level 29, level 30, level 31, level 32,level 33, level 34, level 35, level 36, level 37, level 38, level 39, andlevel 40.One day, an employee named John was doing some paperwork on the 21st level when he saw the pager for the PA system in his boss's office.He could not resist. He picked up the pager, turned it on, cleared histhroat, and told a joke. It was funniest joke anyone in the building hadever heard. They were rolling in the aisles, laughing their heads off.The accountants on level 3 were in tears. The engineers on level 34 were in hysterics. In fact, workers on every level -- level 1, level 2, level 3, level 4, level 5, level 6, level 7, level 8, level 9, level 10, level 11, level 12, level 13, level 14, level 15, level 16, level 17, level 18, level 19, level 20, level 21, level 22, level 23, level 24, level 25, level 26, level 27, level 28, level 29, level 30, level 31, level 32, level 33, level 34, level 35, level 36, level 37, level 38, level 39, and level 40 -- could not stop laughing.He walked out the door of his boss's office, feeling all proud of himself,when who should he run into but his boss. John, come with me now!John relunctantly followed his boss back into his office. His boss lookedat him with fury in his eyes. John, he said, your joke was very disruptiveto the workers in this building! Productivity was decreased on level 1,level 2, level 3, level 4, level 5, level 6, level 7, level 8,level 9, level 10, level 11, level 12, level 13, level 14, level 15, level 16,level 17, level 18, level 19, level 20, level 21, level 22, level 23, level 24,level 25, level 26, level 27, level 28, level 29, level 30, level 31, level 32,level 33, level 34, level 35, level 36, level 37, level 38, level 39, andlevel 40! You're fired! Clean out your desk and get out!But then his frown softened and he added, Still, I have to admit, that jokewas funny on so many levels.