@stefano This immediately brought to mind coming into the office after a holiday weekend in 2005 and finding “my” computer room dark. I found our infrastructure manager, who told me that they had an unexpected power outage over the weekend. Confused, I said “But how is that possible? We have multiple feeds and a huge uninterruptible power supply!”

I will never forget his response, delivered in his thick Scottish brogue: “Yes, we do. But it doesn’t do much good when the UPS catches fire.”