A junior executive was leaving the office late one evening when he found the managing director standing in front of a shredder with a piece of paper in his hand.
“Listen,” said the MD, “this is a very sensitive and important document here, and my secretary has gone for the night. Can you make this thing work?”
“Certainly,” said the subordinate (eager to impress). He turned the machine on, inserted the paper, and pressed the start button.
“Excellent, excellent!” said the MD as his paper disappeared inside the machine. “I just need one copy.”