No one's life was at risk until you brought a gun into the kitchen.
That is not true.
You have a pretty good chance of knowing what might happen if you bring a gun to the table.
And also what might happen if you don't, in the US.
Home invasion in the US is a severe threat - burglary of an occupied dwelling is a red flag on a criminal's record, a serious indicator that they are escalating in their ambitions and will badly hurt somebody in the near future if they haven't already, in the US.
That said, we have evidence that suffering a home intrusion does not make all other people - Canadians, say - fear for their lives and reach for a gun. I have seen interviews with Canadians (and talked with Canadians) who have suffered home intrusions and yet do not even routinely lock their front doors. The fear of strangers common in the US is not nearly as strong in other places.
And that fear is self-reinforcing, amounting to an odd American paranoia that characterizes even apparently peaceful suburban neighborhoods in low crime areas.
Locks don't seem to help. Dozens of times in my old job I had the experience of delivering items to a suburban house and finding the delivery entrance locked even after greeting the homeowner and bringing the item from the truck - they would unlock the front door, send me to the delivery door (walkout around back, say), and not only would I find that door still locked but the original front door relocked behind me as well. And when standing in front of the delivery door with the stuff on the dolly and finding oneself forced to call the fortressed homeowner on the phone to get them to unbolt that door, ten or fifteen minutes after greeting them and unloading and so forth, the impression that there's something very weird going on is hard to avoid.
Guns aren't going to help those people - much less homemade contraptions without even a working safety. They don't have the skills to use them, and their problems are of a different kind.
(My folks never locked their doors except when gone for days, on vacation or the like. I remember when we moved once and couldn't find the keys to leave for the new owners - took an hour of searching before my father remembered where he had stashed them.)