FourGuns. I open carry in there...loaded...no problems.
The last time I was in FourGuns, one of the workers behind the counter was chatting about his sidearm to another worker and said something stupid trying to be funny. He then proceeded to say, "SEE!" and unholsterd his pistol and pointed it right at my face. ( I was about 5 feet away looking at other guns.) He then holstered it about 3 seconds later. His finger was in the trigger well the entire time.............................. I said something to him about it and he just smiled and tried to shrug it off. I was not amused.
That is the last time I will ever step foot in that shop...
As for the signs on the doors, if it makes them happy, great! I'll just quietly carry like I always do. I understand your point BOR, but I do see that in nearly every shop I see, and am sure its for insurance reasons.