LOL! My goal is always not to let them get close enough for a .22 to be useful. But it's better than hiding under my desk while we await the police. That was where I worked.
Now where I live, you call the Marshall and the Sheriff to come pick up the remains. Not a chance in Hell they would be at our house in less than 30 minutes. Just to far.
Ya, a .22 requires stealth and surprise, I would reckon. I like a nice shotgun. My aim ain't what it used to be with my ravaged rods and cones. Aim and pull, is my motto. Actually, I'm deadly with a shotgun, as many coke bottle silhouettes can testify.
Paper bad guys have learned to tread lightly when Sheriff Bagster comes around.