Our neighbour's dog is around everyday. And every night 
He knows he is not wanted, but has no dignity. I take him back to his owners twice a day. DH has gone at 9 pm and even 4 am to drop him off. But to no avail. Before dh or I reach home, the dog is back.
He is a lovely boy, handsome, gentle and affectionate. He is craving being a part of a family pack. His owners take care of him in the conventional sense of feeding him and grooming him, but are never around to actually pay any attention to him. He just jumps over their gate and hangs out at our home.
We try not to feed him, but feel really bad sometimes when we are treating our dogs, and he looks so hurt and sad that he isn't included. Then when we take our dogs out in the car, he stays behind and 'guards' our home and is soo excited when we come back. But the look in his eyes when we leave just breaks my heart...it is like he knows that he is not equal to our dogs, but he will take any scrap of love we have to offer.
But I don't want him around. It is hard to manage three dogs and every time we play with our dogs, he just tries to insert himself. Nor is he trained to obey, and it is tiring getting him to listen.
So, we can't seem to shame the owners into keeping him in check. We don't want to break relations with them either, as they are very influential in the area and we don't want to rock the boat (plus not sure if this will mean that they take care of their dog). We don't want to spend £5,000+ on fencing in our land. What are our options?