For good measure, let me add some more advice, please learn about the main i.e. the fuse box, know the location, make sure that every fuse or switch is identified. This is not a husband or son thing, with all the electrical equipment we use. At the same time,learn how to use the stop cock, that little handle on the water pipes and find the main (probably in the basement). My late husband was very strict on that, I was reticent the first time he tried to teach me, but thanks to him, I didn't panic when a few mishaps happened.
To unplug your equipment is the fist security step. but if the problem comes from the electrical outlet you nees to know about the fuse box.