As many others have posted, these dudes are aggressive or just dumb. We have a no soliciting sign posted on our door and nine times out of ten it works. One of our grandchildren stays with us on Friday and my wife made a sign for the door that explicitly explains that there is a "sleeping baby" in the house. She puts it up during naps. We also have two dogs that go bananas when someone knocks. This dude looked at both signs and then thought to himself that it was a good idea to knock on our door. Sum it up....dogs barking, baby awake and this dude stands there smiling wanting to sell me windows. I even asked him what made him knock on the door and he just gave me a "deer in the headlights look". Sheesh! read more