A man sitting in the corner of a railway carriage kept tearing pieces out of his Â newspaper, screwing them into small balls and then throwing the out of the window.
A man sitting opposite became curious and asked him why he was doing it.
â€œIt keeps the elephants awayâ€, the man said.
â€œBut there aren’t any elephantsâ€, his companion replied.
“Exactly”, said the man, “see how effective it is?”