That gives me cold chills. Dodged the bullet on that one. Lesson learned. You could put a sign out at the end of your driveway "NO VENDORS" but some silly person would read it as "NO GRINDERS".
They don't come to my house anymore either...last time they came, he sent some teenage chick to the door in a tight t-shirt. I answered the door, but when I saw the truck, I immediately slammed it in her face.