BTW; you must not do much physical work to not seem to understand that a wife or husband would rather have a whole spouse than one whom is a survivor of an industrial accident. Very few older working men wear rings that I know of. The ones who do are taking a great risk, it is more likely to get hung on something than you are to be hit crossing the street. Don't you use you hands far more times than you cross a street yourself?
Good lord....spin your paranoia somewhere else, would ya? You're welcome to live a bubble-wrapped existence if it makes you feel safe.
I've been in the construction trades for over 30 years, and have worn my wedding band for well over half that time. I'm not taking it off because (shudders!) something might get caught on it. People with low alertness levels sometimes have accidents. I don't.