Youtube work safety vids

[glatt]

Geez. I've got a screwdriver with a melted spot on it from a minor sparking accident in my own panel. I thought that was scary, but it was just a single pop and a couple little sparks. Nothing like this.

(Previous electrician had been sloppy removing insulation and there was a hot wire with a bit of exposed copper peeking out from a little gap in the insulation a good 6 inches from the end of the wire. Murphy's law says the screwdriver made contact with it while I was tightening a grounding wire in the panel.)