Disagreeing with you isn’t trolling, and the suggestion says more about you than anyone else. Using dismissive language like quibbling is more trolling behavior than disagreeing with you and trying to explain why. You have a particular definition of self defense. One of literally dozens. You’re welcome to it. But don’t expect everyone to just agree with you. You’ve applied some thought to the idea. So have others. Having a working fire extinguisher isn’t self defense, in my opinion, because it doesn’t relate to a crime. Maybe it’s a jelly donut. Certainly it’s a good idea. But it’s not self defense. If having a fire extinguisher reduced the likelihood of being victimized in a crime, I’d agree that it’s self defense. I don’t see the link. And calling your neighbors too stupid to live kind of starts the entire thread off with a certain tone.