We recently got a second puppy, he is not a Boston Terrier but a lab/springer mix. He's only 11 weeks old. So far they are getting along ok, but not great. The Boston Terrier plays very rough with the new puppy, growling and being very aggressive around toys, bones, etc. This has been a problem with our Boston towards all other dogs, he needs to prove his dominance with every dog he meets. It's actually quite a frustrating problem. I'm worried he's going to get bit.

Does anyone else have this issue with their Boston Terrier?