There was a Famous Doctor, an Old Man and a Boyscout on an airplane with engine failure. Unfortunately, there were only two parachutes. The quick thinking Doctor stated "I am the smartest man here and also in the world .. so he jumped out! The Old Man said "My time has been good and the end is near go on kid". The Boyscout replied "No that is okay, the smartest man in the world was in such a hurry, he just jumped out with my knapsack.