Thunder is a 4 year old romeo kind of a guy. He loves to be petted and will give generous kisses to anyone he meets. Someone must have told him he's a lap dog and so that is his favorite place to be! Thunder did well with other dogs in his shelter test. While with us, we have only noticed that he will guard high value items like a marrow bone from other dogs.If there is another dog in the house, those types of items should be given either in his crate or separated from any resident dogs. It is of note that he has pretty much stopped guarding since he came to us, He does not guard with his foster mom but she did give him space during his transition to her care. Due to his size, only children over 10. Cats are a NO.