When I was a kid I sometimes bought mechanical toys, and I also had (and now have) an older brother, who was always interested in learning how these toys are arranged and therefore such toys did not live for more than a day. He understood how to disassemble them and could not collect them back. Exactly once it worked, he was able to make mechanical horses run again, but the rubber leather he could not put on them. I still have child psychological trauma in my mind in the form of iron skeletons of horses running around the room.
...and now in the kitchen with a foolish expression of the face, the husband sits and thinks that it is not so he connected that my laptop refuses to turn on after internal dust cleaning.