Hulk is about 1. He was an Owner Surrender to a shelter in GA. He’s exceptionally sweet, but has ‘puppy brains’ if you know what I mean. He lived with children in his original home. Hulk was fostered in GA by a woman with another Rottie and smaller male and female mixes and was great. She couldn’t cat test him because the cat stays under her bed and wouldn’t come out lol. He is strong on leash, but with an experienced handler he is responsive to direction. But given the opportunity to take advantage he will. As a young strong boy, he does require enough exercise to settle and concentrate on directions. Hulk plays hard so resident dogs should enjoy wrestling and roughhousing. He may guard toys initially if you are too pushy when he first meets you, but he gives a guttural warning over and over to let you know he doesn’t just quite trust you yet. Once he trusts, he’s fine. Hulk loves to chase tennis balls, actually anything you can throw. We haven’t seen food aggression, but he eats in his run at the kennel. I’ve been in his run at feeding time and he ignores me. If you have experience with strong adolescent males and can provide Obedience work with him, he is well worth the effort!