This is PART of my neighbor Frank Foley's house, business, and compound. And this is a 10 foot high wall, which Frank has touched up every few years or so. The wall is 130 years old. Frank is less.
From my bedroom I can see over the wall and see why it's there and when I tell people, those who have seen it initially act surprised then nod because it makes perfect sense.
At Christmas, Frank and his wife, Betty, decorate a large bush with lights that, because of the odd geometry involved, can only be seen by them and me. It has sort of an intimate 'Christmas gift left on the steps' sort of feel to it.
I've never met Frank or Betty but I like them a lot. They are perfect neighbors, quiet and keep to themselves. And they won't meet me until I'm wheeled over and embalmed.