Mike Andrews wrote:

The canonical "Take-Your-Rings-Off" reminder in our electronics shop
in Japan, back when I was in the AF, was a color image, taken at our
base hospital, of a finger burnt to the bone all the way around: one of
the techs had got his wedding ring between ground and a high-current
low-voltage supply.

What we got was a nice photograph of a finger in a dish with the ring,
right beside the newly customized hand.

Roy Lewallen, W7EL