Microwaves are by far the most dangerous, appliances ever built for commercial use. All the reviews are correct but I feel it’s necessary to enlighten people the logic behind it.
Microwaves cook food at a frequency of 2.4 Ghz. This is mandatory as other frequencies call jam wireless equipment and radios etc. To generate this power, in a small box form factor, there must be enough juice to boost up the line voltage. So believe me or not, the voltage in the a micro. can go upto 5000 V.D.C. This is the reason why you have to be extremely careful with one.
With proper use, nothing should happen , but for the prying hands, don’t attempt to jump start a micro by defeating interlock switches. The microwave generation can start. Also don’t replace the glass door with anything else. The perforations on a microwave door are meant to be there for a purpose. So, in short, incase you seem to have a problem with your oven, take it to a authorized sales centre, don’t try any heroics at home, unless you want to become a statistic!.