Lately, as in the last decade or two, it seems every time I try to employ my stupendous electronics and electrical knowledge and training to fix something, I fail and have to buy a new whatever. Maybe the streak is broken. My microwave died. After consulting the world's premiere DIY source (YouTube), I figured it might be one of the interlock switches on the door that prevent the evil zoomies from escaping when the door's open.
After a little deconstruction and checking for hazardous voltage (seriously - if you don't know what you're doing DO NOT attempt to repair your microwave. It could kill you), I found one of the microswitches had a burnt contact. WooHoo! That's an easy fix, at least it will be after the part arrives in the mail.
Counting this chicken as hatched.