I have a really nice Border Collie/Aussie mix. He's very smart, has great manners, and is extremely popular around here. He has several human friends in the neighborhood who love when he comes visiting. One is an older lady up the street who lives alone, another is a single, lonely aging hippy woman a couple of houses away, and there's the alcoholic retired gentleman who comes on weekends, plus my renter and her little boy next door. I love to share him, it's good for these folks to have their canine visitor, they are lonely and comforted by him. He's a really cool, intuitive Lassie type dog who herds our chickens, and actually ran to another neighbor's door and barked and barked when their chained dog fell down the hill and was dangling by his chain, and probably saved his life. Trouble is, the lonely ladies let the dog in and he's not around when I'm ready to go for a walk. They give him biscuits and treats, and my other dog, who's a homebody, also goes to get them, and she has a weight problem. I feel like things are getting a little out of hand. Yet, the dog does a lot of good in visiting these lonely people. Should I start setting some limits by requesting they not keep my dog inside?