Michael, please DO NOT be swayed by the "lobe challenged" minority.
I have worn an earring since I was 20. (Lots of years).
I was a bartender, cook, musician, carpenter, building contractor, EMT, firefighter, fire CHIEF, and I now work in engineering where I'm always in contact with union masons, carpenters, brickies, etc., and I shoot guns every chance I get.
I wore an earring through all of it, and people just had to learn that they got one free wisecrack and that was it. After that their safety was no longer guaranteed.
Obviously these folks have brains the size of their earlobes.