There have been a couple of threads about the government coming to houses wanting to see the people's weapons for this reason or that reason. Neither time did they get in the house because the residents asked them for a warrant and there wasn't one.
Well, there is a front doormat on Amazon I'm going to get: In big letters the the mat has, COME BACK WITH A WARRANT. I'm putting that outside my front door.
I like another of those mats that is what I think about most who come to my door: It has, “GO AWAY” on it.