I was watching a bit of a show called American Diggers. It's about a group of archeologist types hunting up stuff like civil war relics buried where armies were known to have camped and so forth.
They were hunting in Virginia in a semi rural area and were knocking on doors asking if the homeowners were interested in letting them scout their property in return for a share of any profits. The land would be returned to its original state when they were through. None of the homeowners were what you would call friendly - remember there was a whole crew along for this, not just some guy knocking on the door.
One guy answered the door with a double barreled shotgun - pointing it, another was working professionally on a car with a pistol in a holster on his hip.
This was everyday routine for these people.
What a way to live.