On Sat, 10 Nov 2018 16:56:31 -0000, wrote:

On Saturday, 10 November 2018 15:33:18 UTC, Steven Watkins wrote:
Why do houses have a switch to turn the shower off, either a cord
on the ceiling or a switch in the hall?

The switch in the hall is so you can enforce electricity consumption limits with teenagers.

Or laugh when you make a woman scream because the water goes chilly.

But there's a switch or fuse in the fusebox you can use for both of those things.