Eleven people were dangling below a helicopter on a rope. There were ten Air Force Officers and one Sergeant.
Since the rope was not strong enough to hold all the eleven, they decided that one of them had to let go to save all the others.

They could not decide who should be the volunteer. Finally the Sergeant said he would let go of the rope since Sergeants are used to doing everything for the Air Force. They forsake their family, don?t claim all of their expenses and do a lot of overtime without getting anything in return.

When he finished his moving speech all the Air Force Officers began to clap?

Moral: Never underestimate the powers of a Sergeant.