From my cousin Martin:

Russell,

In late 1970's at NZ Steel, story goes that an electrician walked out of a
contactor room and told a work-mate "I've just got a shock off a bus-bar, I
think I'll sit down and rest for a few minutes". Half an hour later, his
mates found him dead, slumped in a chair in their workshop. We were told
"make sure someone stays with a casualty, and keep checking level of
consciousness (ie keep them talking, and if they stop, do something!).

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