You assume that everyone has a "outer fence" around their home
my point exactly.
*I* don't assume anything, the people who argue "what if?" do.
everyone seems to think that everyone lives in California, with wide open lots and waist-high wooden fences... so, to *that* point, is that I present the case of common sense.
even with free open space with no restriction, you still have common sense! (one would hope!)
I have THREE DOORS between me and the street, two of them made of hefty timber wood with solid locks, fitted to brick walls 7 ft tall, the outer wall with a fence on top, and the inner wall topped by the second floor of the house.
we keep the outer door locked 24/7.... everyone does, country-wide.
anyone who has a door with a lock, keeps it locked, or at least has a one-side knob.
our houses occupy the entirety of the lot, especially in more urbanized cities.
there are no back doors or waist-height fences that aren't enclosed in another wall or in front of a more solid door.
it's physically impossible to "burst out" of someone's house during a heated argument!
if you "find yourself on the wrong side of the wall", it's because you were pretty determined to do so.