Where I live there is a sidewalk across the street and I can watch dog walkers walking along the sidewalk while their dogs run through the yards sniffing the grass and urinating and defecating (most do pick up the poop). Last week I saw grandchildren playing in one of the yards and rolling around in the grass. YUK!! Even if you do pick up there will be residue. Come on folks, this is unacceptable. Teach your pet to go on your property and then take them for a walk or better yet, take them to one of our three dog parks. For a small fee, Doggy Do Run will even pick up your dog's poop for you.