A man joined a big Multi National Company
as a trainee.  On his  first day, he dialed the
pantry and shouted into the phone, "Get me
a coffee, quickly!"

The voice from the other side responded,
"You fool you've dialed the wrong extension!
Do you know who you're talking to, dumbo?"

"No," replied the trainee.

"It's the Managing Director of the company,
you fool!"

The trainee shouted back, "And do you know
who YOU are talking to, you fool?"

"No." replied the Managing Director indignantly.

"Good!" replied the trainee and put down the phone.