The voice from the other end responded, "You fool, you have dialed the wronge extension! Do you know who you are talking to?"
"No," replyed the trainee.
"It's the manager director of the compony, you fool!" The man shouted back,
"And do you know who YOU are talking to, you fool?
"No," replyed the director.
"Phew," said the trainee as he laughed and hung up.