Or on any type of machinery.
I had a buddy years ago that was working under his car and somehow laid his wedding ring across the + terminal on the starter and the grounded housing. In an instant the ring turned cherry red and near burnt his finger off.
I also had a 2 LT in Viet Nam that was climbing up the side of a small Navy ship with the steel grids on the side. He lost his footing, the ring got hooked on something, and skinned all the meat off his finger along with the ring. That was fugly with just the bone left sticking out.
See what being married gets ya.