I have had 1-3 dogs at a time my entire life- ranging from Rottweilers to Chihuahuas. I love training, hiking, and playing with pups- especially when I can take them to the metropark for a play-date. My 3 year old Lab/ German Shepard/ Border Collie mix, Sinatra is the ultimate playmate for dogs of all sizes. I interact with dogs in such a way that they recognize me as "Pack Leader" while simultaneously being a huge source of fun, exercise, and treats! Depending on the level of socialization you pup has, I would love nothing more than to let them play with Sinatra and get even more tuckered out with my sweet, happy, mid-high energy girl. She has been socialized in pack-style doggie day cares as well as in home with multiple since birth.