I have a female Roxie (5) years old who is the alpha. Last fall we rescue a male Tyson (approx 4-5 years). For the most part they get along- but sometimes (especially when we have ccompany ) they can't get along. Either Roxie will start staring at Tyson or Tyson growls (he seems to have a large personal bubble) and if we don't distract them in time a brawl will start. I am looking for any suggestions - thanks