One day a man goes to a pet shop to buy a parrot. The assistant takes the man to the parrot section and asks him to choose one.
The man asks, “How much is the yellow one?”
The assistant replies that it costs $2,000. The man is shocked and asks the assistant why it’s so expensive. “This parrot is a very special one. He can type really fast.”
“What about the green one?” the man asks. “He costs $5,000 because he can type, answer incoming phone calls and takes notes.”
“What about the red one?” the man asks. The assistant says, “That one’s $10,000.”
Curious, the man asks, “What does he do?” The assistant says, “I don’t know, but the other two call him boss.”
Source – http://albertaventure.com/2013/11/office-approved-jokes/