Well, nobody wants the dead body in the kitchen but, if someone breaks in, they are up to nothing good. In my home there are a few other things quite more valuable and irreplaceable than my microwave: a good husband, my priceless children and my loyal pets. In my eyes any and all of these are worth more than a SOB who breaks in and puts my family in danger. So, a skillet iron to his head or a .45 bullet to his gutt is OK with me.
I have no problem with shooting someone to protect life etc. The thing is, that unpleasant necessity has morphed into a joyful fantasy for many.