> The former prisoner of war and U.S. Navy seaman Doug Hegdahl reports fellow U.S. captives in the Vietnam War would authenticate a new prisoner's U.S. identity by using "Shave and a Haircut" as a shibboleth, tapping the first five notes against a cell wall and waiting for the appropriate response. With the mass export of western culture, I wonder if there are any songs, tunes, or patterns like this that would still…
For the US, "where does the shortstop play" is a pretty good one. Some people might get through K-12 without learning that, but surely not many.
The GIs hit on the idea of asking them baseball questions. Failing to answer them correctly got the fake officers shot on the spot.
My dad (WW2 vet) told me I would have been shot on the spot. My utter disinterest in baseball distressed him.