Around certain types of equipment, watches and rings are just not good policy (when I was a much younger man working on drilling rigs in the oilfields of Pennsylvania, I wore neither).
Lloyd, when I was in the military I was a ground support equipment mechanic in VA-205, a A-4 SkyHawk reserve squadron. They sent me to electrical school at NAS Jax for a couple weeks. First thing out of the instructors mouth was to take off our watch and rings, if we had any on, and pull our shirttail out of our pants to cover the brass belt buckle on our web belts. A ring or a watch can contact a 12V source and if it grounds somewhere else at the same time you are left with an instant 3rd degree burn.
My grandad was given a wedding band by his three grown children when he was about 60 yr's old. He had never had one. He put it on and wore it until he was standing on the narrow ledge on the outside of a stake body farm truck, holding onto the top edge of the boards. His foot slipped and he fell straight down. Along the way his ring caught on some exposed threads of a 3/8" bolt. It nearly pulled his finger off. It didn't but it ripped the tissue from the bone so badly that the Doc had to saw the ring off before patching him up.
Lesson learned, for him and for me.
