A young man, hired by a supermarket, reported for his first day of work. The manager greeted him with a warm handshake and a smile, gave him a broom and said：“Your first job will be to sweep out the store.”

“But I am a college graduate.” the young man replied indignantly.

“Oh，I am sorry. I did not know that.” said the manager.“Here, give me the broom, I will show you how.”