The size doesn't really matter. My schnauzer (Hans) is very dominant. As long as he can boss a dog around, he's happy. Which is exactly what happened with our boxer. The big baby!!! Hans is dominant but very social. He goes to doggie daycare where there's about 10 other dogs and cats. Our neighbour has 2 llaso apsos (sp?) and they get along fine. Unfortunately, I live in Canada and there aren't many beaches where I live. I'm not too keen on the Shelties though. I prefer short haired dogs. I love boxers the best (of course), but it's just too soon. It would remind me too much of Rocky. Professional grooming is fine, Hans goes every 4 weeks. He's very spoiled!!! I went to our local shelter today and most of the dogs had tags that they don't get along well with other dogs. I would adopt one, but my husband isn't interested. He wants to raise one together. Remember, Rocky was mine and Hans was his when we met. Hopefully, this is a little bit more information. Love to hear your opinions.

Tanya