> You can’t account for every single thing someone might do. yes you can. It's called security, and it has been a booming industry since at least 4 decades. Pe

> You can’t account for every single thing someone might do. yes you can. It's called security, and it has been a booming industry since at least 4 decades. People will do stupid things because they think differently, have different things in mind,... Never wonder "if" they will do it, but "when" > if staff members started flipping off random circuit breakers If they are accessible to them then they shouldn't cause damage. Just lock the cabinet if nobody should touch them. A lock is 30$, isn't it? A tag with a phone number for maintainance is 5$ ? > They put a sign on the fridge So they knew they were 1 switch away from disaster, human intervention or not. I hope it had proper SIL rating, if they are mad now it failed. Either humans are nice and well intentioned but stupid, and it's a shame to blame them when they just tried. Or they're really evil, and then you need to protect the system from them. Anyways, it's stupid to blame workers afterwards. UPS should have been directly between the fridge and the wall, without switch in the middle. And it should have warned staff. If not, they had accepted the risk. The fridge was also already malfunctioning and required maintainance (hence the temperature alarm) So I'm surprise there was no monitoring whatsoever, just a sign, and now they are mad about its failure. It's not consistent.