gzt:tweake: but of course nz is so woke that if such a system actually stopped an intruder, you would be dragged through the courts and punished. self defense may be legal, but that doesn't stop them punishing you for doing so.
typically you'd be killing junk mail deliverers, religious door knockers and an occasional FedEx delivery, someone who got the wrong address, etc.
Wokeness aside for a moment that ain't even legal in Texas:
https://www.nbcnews.com/video/tablet-stops-bullet-when-texas-man-shoots-at-door-to-door-salesman-204053573518
we are talking about people who break into your home, not people who knock on your door. if those types of people are breaking into your home, they are thieves in disguise, and in texas they do shoot them. thats legal and often encouraged in texas.
shooting someone knocking on your door is not legal and in that case in that video is probably race related issues.