HeyBub wrote:
....
who built up his tolerance to electricity. Over several months, starting
with tiny batteries, he was able to withstand the maximum voltage to which
he had access (440v I think). ...

That's an utter fabrication if intended for other than the punch line.

It ain't voltage that kills, it's current (roughly 15mA is sufficient
through heart). Voltage is the driver behind current so it has an
effect in making the likelihood of the current higher, but simply static
voltage isn't a problem--think of the bird sitting on the HV
transmission line.

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