My dog Rufus is the most gentle dog, he is only 16 months old and 130 lbs. and the sweetest dog ever. He loves all his brothers and sisters. He lays in the yard with them while they are out and they all come over to him and he doesn't bother them. We adopted Rufus when he was about 6 months old. He was going to be put down by the breeder because he has a stage 4/5 heart murmur, so we adopted him so we could give him the best life for as long as he is here. Turns out he is the best dog ever and watches out for our chickens when he is outside with them. He does look hungry in that picture but he would never harm them. When we hatch chicks and put them in the brooder in the house he sits and watches them all of the time.