Not wrong -- the safety screen is part of the cavity resonator.  But if there&#x27;s a hole in it, or if you defeat the door interlock, you can still cook yourself with microwaves.  In general I&#x27;m not too concerned that I&#x27;m going to cook my eyeballs by looking at my spaghetti to make sure that it&#x27;s not exploding all over the inside of the microwave.