A Doctor, a Lawyer, a Priest, and a Little Boy were out for a Sunday afternoon flight on a small private plane, when suddenly, the Plane developed engine trouble.

In spite of the best efforts of the Pilot, the Plane started to go down.
Finally, the Pilot grabbed a Parachute, yelled to the Passengers that they had better jump, and bailed out.
Unfortunately, there were only three parachutes remaining.
The Doctor grabbed one and said."I'm a Doctor, I save lives, so I must live", and jumped.
The Lawyer then said; "I'm the smartest man in the world, so I deserve to live". With that, he grabbed and jumped.
The Priest looked at the Little Boy and said. "My Son, I've lived a long and full life. You are young and have your whole life ahead of you. Take the Parachute and live in peace".
"Not to worry, Father. The smartest man in the world just jumped out with my back pack".