BZZZZZZzzzzz

It is midnight, the in-laws are sleeping in the guest room next door. My wife comes into our bedroom with something vibrating wrapped in a towel.
"Deal with this, I can't turn it off!".
It is the Braun electric toothbrush.
Something has shorted inside it and i am desperately trying to turn it off without any luck while it is vibrating away, rather noisily, threatening to wake the whole house.
We wrap the toothbrush in the towel and a thick blanket and stick it in the closet.
After maybe half an hour it shuts itself off and the next day it works fine again.
It has happened once before.
I see this as evidence that German engineers do have a sense of humour.