Gig 601XL Builder wrote:

Do you have a cite for that?

It's mentioned frequently in older books on aviation. Check out "Fate is the
Hunter" or Ernie Gann's autobiography for starters. Gann retired from commercial
aviation in the late 50s, and pilots were still required to carry pistols in
their flight bags.

George Patterson
Coffee is only a way of stealing time that should by rights belong to
your slightly older self.