I have been working as a mechanic for the last 5 years. The first 4 as an aircraft mechanic, now as a car mechanic. I actually think I spend as much time with my ring off as I do on. For safety reasons of course. We would always get safety lectures about wearing rings and the attention grabber they used was of something called gloving. Basically your ring gets stuck somewhere, something moves, the ring comes off whether the skin on your finger wants it to or not..... not a pretty sight look it up on google images
edit never realized there were 3 pages and somebody already posted about this