Around '93 I tried to fix a friend's power supply. I don't remember why, but I was trying to remove a short jumper(solid copper wire about 1cm long) by wigglin

Around '93 I tried to fix a friend's power supply. I don't remember why, but I was trying to remove a short jumper(solid copper wire about 1cm long) by wiggling it back and forth. The wire touched something hot, vaporized in my hand, and left me with a copper coated thumbnail. Even after that, I continued to do dumb things around electricity. I'm not all that smart.