My dad was a non-combat fighter pilot back in the 1950s. One funny story he told me was that his squadron was flying in formation on a day where there thick layers of both low and high altitude clouds with clear skies in between so that you couldn't see the ground or sky above. They notice a commercial passenger airliner flying in the clear sky so passed it in formation all inverted so that to the airliner pilot and passengers, it appeared that it was the jetliner who was upside down. Perhaps had the airline pilot second guessing and scratching his head.
I heard a similar account when I was in the service when some P-38's did the same thing to a transport. The one that I liked was a Ryan FireBee flying past a fighter with the prop feathered that shook up the observing pilot. Switches
It's like the old fighter vs bomber/transport joke: An USAF F16 is escorting an RAF Hercules when the F16 pulls a perfect roll right around the Herc. The F16 pilot then comes over the radio: "lets see you try that then" The Hercules crew ponder for a moment....then shut down number 1 engine. The Herc crew come over the radio in a dodgy US accent: "lets see you try that then"! (or the alternative version -- the Herc/bomber does nothing for a minute, at which point the fighter pilot asks: 'so what'd you do that was so special', to which the bomber/transport pilot replies: 'nothin', just got up and walked around.')