I've read through many, many pages here but must confess I have not read ALL 57 pages...yet. So, I hope something similar has not been posted already.
One of my favorites, and, true:
Years ago when the transition from (Statute) Miles per Hour to (Nautical) Miles per Hour was taking place in the aviation industry there were obviously airplanes with the "older" MPH Airspeed gauges still installed.
One such airplane was Twin Bonanza 5636D.
Seems like 36 Delta was enroute somewhere and the Center asked him for his airspeed.
36 Delta replied, "150 Miles Per Hour, Sir."
The Controller came back with, "What is that in Knots?"
36 Delta replied: "I dunno, this is a Beechcraft, not a Chris Craft, you figure it out!"