Folks, some of y'all just have no idea...
I met a guy at one of my clients who was a tree trimmer. He was trimming a tree next door to a power substation... The power arc'ed from a distance you would have thought was well safe away, and vaporized both arms up to his shoulders. I mean, gone, nowhere to be found. Poof! This is not stuff to be messed with people! It's amazing this guy is still alive. All they can figure is when his arms went poof so fast, that the circuit never passed through his heart or brain enough to kill him, since he was sweating profusely, it was an external event on his arms, wet skin, and the pole saw where the arc traveled through the arms and thats it. Of course he had some serious burns too... which again, cauterized the wound. *shudders*
Like I said before, the unlimited amperage on tap on a high voltage multi phase line is pretty much death incarnate. When I was a bench tech, the voltage coming off of fly-back transformer and a silicone tripler was nasty at 28KV! But it wasn't high current. I've been blown out of my chair back up against the wall, and embarrassed more than hurt, with a burn and muscle cramp or two... R/F and high freq stuff can be nasty too... drill a little hole right through your finger tip if you stick it in the wrong place. Then people would wonder why I liked such long test probes and I would still wrap the ends with just the points exposed, heh. Old Tube equipment with those large transformers and big caps and lot's of current in reserve and B+ at 400v can kill ya dead... much more so than most of todays low voltage computer equipment which is all 12v/5v DC, as long as you stay out of the AC side of the sealed factory power supply, which is no different than your wall plug and just as deadly. They're sealed for a reason, so don't go poking things in their trying to spin up your dead cooling fan, LOL.
Anyways, stay off the metal ladders and away from power lines folks, and hope John starts to recover real soon!
EricV