I'm not talking about myself, I am talking about a loved-one who doesn't understand the risks and simply complies with the sign. They might not sue (maybe being dead, and all), but I would. I have zero respect for those who demand others check their liberty at the door-- or worse.

If I invite people onto my property, it is with ALL their rights intact-- and I expect the same treatment anywhere I go, too. If I don't trust you with a gun, what business do I have inviting you onto my property at all?

Property rights go beyond real estate rights.