Meet Trooper, a 4 year old German Shepherd Mix. Trooper has a very large and energetic personality and would do best as an only pet. Trooper is very loving and sweet with people, but doesn't know how big he is, so he would do best in an adult only home. He would be great for an outdoor person, since he loves going on long walks and is very alert to his surroundings. He is very smart and already knows his basic commands.