[tumblindice]

I learned not to try to plug a refrigerator into a GFCI receptacle. The cycling of the compressor trips it.
And I’ve heard you shouldn’t try to work on a microwave yourself, to tear into it, even if it is unplugged because it stores enough electricity to knock you on your butt.

[Lurkinanloomin]

Correct, Refrigs should not be plugged into surge protectors.
The microwaves have a capacitor that if not discharged will discharge into you. Simply shorting across the poles after unplugging discharges it (with insulated tool)