Taurus, I'm glad to hear you've thought through the "rules of engagement." It's wise to be ready to respond, and to do so appropriately. Hope you never have to face that situation.

If it's not out of line, may I ask: what happens when you're not at home (that is, operating under different rules of engagement)?

I've put a few measures in place so DW can sleep well. A couple of big dogs (not vicious, but loud and impressive) are the first line. Also, I live in the country, so a latched gate at the road is a deterrent to "window shoppers" who would always arrive by vehicle. And close at hand is a fresh can of bear spray (bought for bears, but dual purpose) and other useful items.