Even when you are in your remotely located house, and somebody knocks on the door, and you bring your rifle or gun to the door, open the door and point it at the visitor, asking them to tell you why they re there, isn't that illegal in itself? Even if weapons are legal where you live and you have a license?
I would certainly never dare to point a real gun or rifle with real ammo in it (loaded or not) on somebody unless I intended to shoot them. Who knows when some complex series of physical laws (weather, wear and tear, humidity, random chance, getting startled, etc.) causes the trigger to unexpectedly be pushed, or the same mechanism to happen, causing a bullet to fly out and kill the person in front of you?
I just would feel completely uncomfortable doing that even if I knew the firearm in and out. I'd "relax" it pointing to the floor but in their general direction, so that it can be quickly pointed up to fire if they really do have bad intentions.
For example, in "Ace Ventura" (yes, it's an exaggerated comedy, but that's what I last watched where this happened), a man opens the door and keeps his shotgun pointed at Ace for a long time as they talk. It seems like such a major risk to me. Surely it cannot be legal, nor sensible?