One is the pilot, the other two are a hippie and the someone self described as the world’s smartest man.
Suddenly the plane’s engines began failing, and the pilot says there isn’t much time, and he’ll keep the plane in the air as long as he can, and told his two passengers to take the only two parachutes on board and bail out.
The world’s smartest man immediately took a parachute and said
“I’m the world’s smartest man! The world needs me, so I can’t die here!”, and then jumped out of the plane.
The pilot tells the hippie to hurry up and take the other parachute, because there aren’t any more.
And the hippie says
“Relax man. We’ll be fine. The world’s smartest man took my backpack.”