A man joined a big multinational company as a trainee.
On his first day, he dialed the pantry and shouted into the phone: "Get me a fuckin' cup of 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?"
"No," replied the trainee.
"It's the Managing Director of the company, idiot!"
The trainee shouted back: "And do you know who YOU are fuckin' talking to, you idiot?"
"No!" replied the Managing Director indignantly.
"Good!" replied the trainee and put down the phone