Speaking from experience, that's not how electricity works at all. You always avoid working on live wires, so you'd shut off the electricity entirely rather than just flicking a switch. Even with the switch off it's still a live wire waiting to kill you.
On top of that, who would ever do that in the middle of the night in the dark without at least taking a torch with them? You'd do it during the day so you could at least see.
Sorry, just bothered me. Rest seems pretty chill so far