Btw, all that stuff about the thumb and 360 degrees, yet again demonstrates the Law of Fives - reality driven by perception - and why misguided, but perhaps well meaning, people generate huge amounts of waffle when they try to see the 'magical/occult significance' of things that occur by coincidence.

My mum's dad knew this 'peasant trick' of measurement as well as others I have forgotten, handed down thru his family. He was fairly well self educated, but had no University, or even High School Education: generally in those days, if you stayed til 5th grade you were considered fairly highly educated.