Can your electronics catch on fire even if there off

Question

Can your electronics catch on fire even if there off

Answer 1

A direct short is all ya need

Answer 2

of course. the metal wires wrapped in the rubber coating can easily catch on fire when overheated. that's why when I'm finished using my laptop, I always unplug the charger, because as long as there's current in the wire, a short circuit can happen

but of course, it doesnt happen THAT often =D