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.
A similar incident happened to a friend, and the cops did show up. My buddy said no thanks, he wasn't interested and the salesman? opened his screen door and actually put a foot in his house and was on his way in when my buddy drew his 1911, pointed it at him, and ordered him to get out. The fellow called the police from his lawn, for cripe sakes. They weren't sympathetic to his argument, no complaints were filed, and no arrests.