

They did eventually participate. While their initial behaviour wasn’t the best, I also understand why they dragged their feet. There was a definite witch hunt going on, for someone to blame. Once that calmed down, they did actually help with investigating it.
In fairness, the only thing many people will lack is water. It’s not an exclusive stash, but in addition to what’s in your cupboards.
You can get 10L or 25L quite cheaply. 1 should do per person, maybe with an extra for cooking. Or just grab some big bottles of water.
A hand cranked flashlight, candles and lighter are all a must anyhow, for a power cut. It might also be worth having a cheap camping stove tucked away.
Food wise. It’s just a big bag of pasta or rice, along with some cans/jars to make it pleasant to eat. Throw in some hiking snack bars and you’re sorted.