I live in a state with a Castle Law and also live in an area where I am always armed (CHL)
They seem to want to leave as soon as they see that gun on my hip or under my shoulder.
I had a very , very persistent magazine salesman one day and told him "No, not interested" and he kept on. So I told him he could ask Mr. Smith or Wesson if they were interested and he could not leave fast enough.
I expected the cops to show up next but they never did.
I hate door to door sales people.