I had a similar thing happen to me a while ago.We were expecting the gas man coming to fit us a new boiler.When he arrived he turned all the house electrics off without notifying us,the idiot! and as you can imagine,I had SH3 running at the time he decided to end that particular career
for me.
A decent UPS would be a fine addition to any SH3 fanatic's arsenal
You have my sympathy maillemaker.