I went grocery shopping today and found the shelves half empty, particularly the refrigerated stuff. Employees were busy putting packages of meat, etc back on the shelves. When I asked what happened, they said they had a power outage this morning and had to remove all the food so they could fix the electronics under the shelves. (Or maybe replace them, I don't know what they did.) I guess they had some system for keeping the food cold safely somewhere else.
I didn't buy any meat anyway, as I didn't trust that everything was OK. But I did get most of the other things on my list.
P.S. Why is this subject being discussed on a Covid thread?