This is Gromit! We got him yesterday while we were at the national JRT Trials in Havre de Grace, MD. Our other Jack Russell, Scooter, can be a pretty big jerk with other dogs. He was with us, so they met on neutral ground. My German Shorthair was home by herself so introductions needed to be made last night when we got home.
I won't lie, my dog is not at all dog friendly, so I was extremely nervous. But all introductions went much, much better than I anticipated. Bringng a new pup into the house with two 12-year-old dogs with, uh, strong personalities won't be without its challenges. But the first 18 hours have given me reason to be confident that we'll be able to manage everyone.
Possibly the best part, he's four months old and has already gotten a big head start on housebreaking and crate training. He might be housebroken, actually, he seems to be. But I'm not a fool, one day without an accident does not a housebroken puppy make. Regardless, a lot of the early hard work has been done for us already.