On Sat, 16 Apr 2011 05:26:55 -0700 (PDT), Shaun Eli
wrote:

First day of auto mechanics class in high school- teacher told us how
fast it'd get hot if we accidentally shorted out the battery
terminals, and if it was from a watch we're wearing we'd burn the heck
out of our arms. So no watches in class.

When I worked in an area that had electronics automated test equipment (chip
testers) there was a ban, for everyone entering the floor, on all metal except
eye glasses, ear rings, and belt buckles. Kinda silly because most work
wasn't any different than working on a PC but they had to do it because there
were production people working on the floor.

Wedding rings were not an issue, at least not in my school.

That's dumb. It's a *lot* more likely to get a ring across a battery than a
watch. Rings often get hung up after the normal reaction to shock or
explosion (jerk the hand back).