I can only have one at a time because I prefer female dogs. 2 female boxers will rumble. I've paired my boxer up with a Frenchton. They are ying and yang.I had the abused one's, poor thing on the floor, dad too. Three generations up until he passed. I will always have a boxer or 3. My favorite real dog.
Sorry OP about the boxer talk. I get excited about dog talk.