Once a man goes to a shop to buy a parrot.
He asks the shop owner price of the Parrot:
Shop owner: Rs. 500
Customer: Why so costly?
Shop owner: He knows, Word, Excel and PowerPoint
Customer: What’s the price of this second Parrot?
Shop owner: Rs. 1000
As it knows Word, Excel, PowerPoint and also Programming
Customer: How nice and what’s the price of this parrot, which is sleeping?
Shop owner: That’s for Rs. 5000
Customer: And what does it know?
Shop owner: That I don’t know, I haven’t seen him do anything, but the other two parrots call him boss.