Lest we forget.
Win 3.11 ran on top of DOS on a FAT filesystem.
Habitually turning it off and on again was guaranteed to get the Disk Corruption Fairies[1] to sit up and take notice.
[1] As in: "Did you turn it off with the power switch again?".
"No I didn't!"
"Right. Must have been the Disk Corruption Fairies at work then."