I knew the phrase about "room to swing a cat" was just a saying about enough space...but we immigrated to NZ from San Francisco when I was in my 30's and went farming. Imagine my surprise when the vet told me the best way to make a newborn lamb breathe after a difficult assisted birth, was to pick it up by the hind legs and swing it up and over in a circle. Imagine how I felt when it worked! I was a ballet dancer...transplanted to being an ovine midwife and had a steep learning curve.
BUT we knew a Kiwi butcher who really thought ewes had one more rib than wethers....great powers of observation...the amazing thing was he wasn't just trying to kid the Yanks.
A childhood belief about general

others believed things like this
- I used to think that swing music was called that because you listened to it when playing on the swing set.Anon
- My daughter thought milk was cow pee because it came from between the cows hind legs— Suzanne
- --I thought if I swung hard enough in my swing i could possibly reach an airplane
— dusty chenille - My dad told me that kiwi fruits were kiwi birds testicles. They are the right shape and kind of furry— jefnier
- I used to think that if I was swinging on a swing fast enough, I could jump off it and start flying.— Nick
- I used to think that you would get arrested if you didn't swing your arms when you walked in publicAnon