[Zeus is Loved]

We are getting another Yorkie from the same man we got Zeus from. Once again, he's the last Yorkie the man has. We tried a Shih Tzu puppy last year, and that did not go well at all. He was already bigger than Zeus at 12 weeks old and was overly playful to the point of hurting Zeus. We had to get him back to the seller, who had made the agreement to see how it went with Zeus. I'm afraid Zeus has that "only dog" attitude; similar to my teenage son who loves being an only child. We are really hoping this works out, because we want Zeusy to have someone with him when we are not home. Any thoughts or suggestions?