About 32 years ago, I had a sweet computer setup. IBM PC on the side of the desk, two monitors, and a home-made keyboard extension cord. One evening, I was working on the computer and suddenly, the keyboard stopped working. I ctrl-alt-deleted and nothing happened. I turned of the computer (losing all my work) and turned it back on.
While it was booting up, I saw ears under the monitor stand. The kitten had chewed through my keyboard extension cord.