Hi all, I’ve got an AMAZING little 7 year old miniature schnauzer. He is amazing with kids and other people. He’s “ok” with bitches, but he HATES other dogs. My sister has dogs, and we’ve tried to get him to get along, but he’s just not having it. I’d really like a German Shepard. I didn’t know if introducing the new dog as a puppy, it would give my dog time to learn to live with a new family member? Any advice would be fantastic. kind regards.