I have a similar story of a smallish colocation site located in the cellar of a high school building in Switzerland where we hosted two servers for a small comp

I have a similar story of a smallish colocation site located in the cellar of a high school building in Switzerland where we hosted two servers for a small company ten years ago. The operator company had a generator at the site. During a thunderstorm there was a power outage, so at first all was fine. However a lightning nearby destroyed some critical circuitry of the generator. I additionally made the mistake of putting the watchdog system in the same colocation so that I didn't even get a notification about the outage. But after all I would have been powerless anyway.