> Isn't the human body resistance too high for that That must be true normally. But years ago I recall reading about someone who fixed an 12V underwater light

> Isn't the human body resistance too high for that That must be true normally. But years ago I recall reading about someone who fixed an 12V underwater light in a pool. You would imagine that would be harmless, but he managed to create a circuit that ran across the pool. It was a salt water chlorinated pool, and after doing the job he dived in, and it killed him. I don't know how wide the pool was, but in any case the voltage across his body must have been less than 12V, and possibly a fraction of that.