He's great with kids, other dogs (of all sizes), and even has a little experience around a cat (but not much). He thinks he is a lapdog (he's about 22 lbs., I think), but he's big enough to just get his head and front feet on you. He has a big underbite-don't think he's looking vicious in the pictures-he's just always smiling! His shots are up to date. He's kennel-trained and fine in his cage for nine hours a day or so.