My neighbor - 2 properties over - is a former K-9 LEO from the mid-west. He brought three dogs with him when he moved to Florida. He's now a traveling horse dentist, often away from home for weeks on end. My grandson feeds the dogs when he's on the road.
I guess the dogs got lonely being by themselves day after day after day. A couple of years ago, Greta, the female GS, discovered a way to escape and one night I found her in my yard. I brought her back and she returned to my property by morning. This happened over and over and over. Finally, my neighbor said I could keep her. One day I found her with a hen in her mouth and I yelled at her. The hen was stunned but okay otherwise and Greta never bothered them again. She and the cat have become good friends.
About six months passed before Rhone, the male GS shown with the chicks, discovered an escape route. My neighbor tried to keep him contained . . . electric wire along the ground, barbed wire strung on top of the fence . . . with no luck. So Rhone joined my household too. He never displayed any interest in the chicks but is curious about the cat who wants no part of him. My neighbor's third dog has never tried to escape.
What's interesting is that I never close my gate. So when my neighbor comes home from a trip, Rhone will often go over and spend the night with him before returning here. Both dogs know my grandkids ride the school bus and stand by the gate to greet them each afternoon.