One day a man goes to a pet shop to buy a parrot. The assistant takes the man to the parrot section and ask the man to choose one. The man ask, "how much is the yellow one?" The assistant says, "$2000." The man is shocked and ask the assistant why it's so expensive. The assistant explains, "the parrot is a very special one. He knows typewriting and can type really fast."what about the green one?" The man asks. The assistant says, "he costs $5000 because he knows typewriting and can answer incoming telephone calls and takes notes."what about the red one ?"them an asks. The assistant says, "that one's $10,000." "The man says, " what does HE do?" The assistant says, "I don't know, but the other two call him boss."