A plane was flying madmen from Nigeria to a psychiatry in South Africa,they are really making so much noise. One of the madmen enters the pilot cabin!

MADMAN: Teach me how to fly a plane.
PILOT: I would but under one condition.
MADMAN: What could that be?
PILOT: I would teach you only if you can get your friends to keep quiet.
MADMAN: OKay. (5mins later the plane is very quiet).
PILOT; Wow,how did you get them to keep quiet?
MADMAN: I opened the emergency exit door and told them to go and play outside