Oh, has any mentioned fuses? The kind you screwed into the fuse box in the basement? The dark, dank, damp basement that nobody liked to go down into?
We blew fuses on a regular basis in the old house I grew up in. The wiring wasn't really up to "modern" appliances, like coffee pots, toasters, bathroom spaceheaters, etc. We were fine if we didn't run too many things at once. But if someone slipped up and turned on the bathroom spaceheater at the same time as the coffee pot and then someone else pushed the toaster lever down, then it was Darksville for the kitchen....and the bathroom.....and the basement....and.....
Unhappy language would pour out of my poor dad and down he'd go to the basement, flashlight in hand and change the fuse out. It's a wonder that he never got electrocuted standing on that damp floor touching fuses in an old fusebox. Then we'd get The Lecture once again and once again we'd promise NEVER, NEVER, NEVER to do that again, at least until we did it again next week.
He wouldn't do it, but some people would put a copper penny in the hole and then screw the fuse back in as a temporary fix until they got a good fuse. That was really dangerous.