Did you hear about the high-wing pilot who was returning from a hunting trip but crashed in a remote part of the Sierra Nevada mountains? Badly injured, leg broken, he realized his only hope was to wait for rescue. He recalled reading somewhere (probably on POA) that firing three shots, spaced about five seconds apart, was a sign of distress and would help a search party locate him. Every couple of hours, he dutifully fired three shots into the air and waited and hoped. Finally, late on the third day, the searchers found him, and none too soon as he was almost out of arrows.
(That's okay, I'll show myself out.....)