Does anyone know the meaning of "No Soliciting"

[livwire68]

So I have two doorbells to my house. The one everyone rings is at the outside gate entrance and directly above it (cant miss it!!!) is a "No Soliciting" sign. So anywhere from 3-5 times a week I get someone trying to sell me something or give me something. Are people that stupid that they still try or don't know what it means? How do you deal with it? I have been an a$$ and I have been polite, I am thinking about handing out cards with the definition on them before they speak. Maybe I should go ahead and get their supervisors name and number and make a complaint. I Shouldn't have to do this if they have a elementary school education, although some say they are trying to go to college or some other BS. I really hate it when they say I seen your sign, but! But what! Obviously your dumb as a rock! Sorry needed to vent and maybe gather of ways to deal with it!