Same industry as MMW. Same kind of history.
Had a few doing install work when some c*nt has turned on an isolated and clearly labelled circuit back on while I've been working on it. Funny old world, they got more of a shock from my size 10 steel toe boot up their arse than I did from the belt of the mains.
I have done (note past tense) the odd live 415V tail in. That was in younger and more stupid days. Asked my girlfriend to stand there with a wooden plank to hit me with if I went live…
One gig I did – we were patching a knackered old dimmer rack in a greenfield stage – the only power on site was through the rack, and the only way we could find which lamp was which was by plugging it in via the knackered old patch leads. Between me and my mate we got about 50 shocks in the space of half an hour. Fortunately they were 110V lamps, so merely tingled, rather than chucked you across the room.
I am now older and wiser and wish to be "Alive" rather than just "live"….