[Oxidation]

Meanwhile I did a fire course and the firefighter running it said "never leave applicances on over night or unattended" (rule 2 after "always close doors").

Not that I always do not do so (the dishwasher and washing machine in particular), but the coming millions of cars drawing double digit kilowatts at night out of domestic electrical systems is probably going to cause a few fires.

[ellisv]

It’s not practical to shut off every appliance, particularly the major ones. The risk is probably greater for smaller kitchen appliances (eg George Foreman, waffle iron, etc) that don’t have the safety features of large appliances.

As long as the Samsung Galaxy Note 7 & Dishwasher team isn’t working on it, electric car charging is pretty safe.

[Oxidation]

I think it's about avoiding having them running than turned off at the socket. And I have a countdown timer on heating devices that could be left on and won't automatically turn off after some time like electric grills and heating mats.

> As long as...

Well, exactly.

Also as long as the house wiring is correct, and we all know all domestic electrical jobs are always top-notch¹.

1: https://www.reddit.com/r/cablefail/