John Harlow wrote:

Someone falling asleep flying? Sure, I can believe it. As someone once said,
"flying is long periods of sheer boredom punctuated by moments of sheer
terror".

As far as I know, the original version of this comes from "Fate is the Hunter",
by Ernest Gann. He was referring to piloting commercial airliners in the late
thirties.

George Patterson
The optimist feels that we live in the best of all possible worlds. The
pessimist is afraid that he's correct.
James Branch Cavel