I developed male pattern baldness starting in my late 20’s. I learned later that my friends’ “secret name” for me was “Sydney” – because my bald spot was shaped like Australia.
I have my revenge, though, now that my bald spot, though it now resembles more like Pangaea, is currently more age-appropriate. Because nowadays, due to what I consider my “Yout’ful Demeanour”, people consistently peg me as being 10 years younger than I actally am!