I'm so sorry your Brennan got bit. I cringed as I read the title of this thread. A few days ago I read on another dog forum (specific to boston terriers) about one of the bostons getting mauled, almost to death by a pittie. The owner knew his dog was dog aggressive but kept him off leash. The pictures of my friends dog were horrific to look at and it's a miracle her dog survived it. My dog Frankie is a little dog aggressive so I always take him on walks with proper stong harness and leash. We always avoid dog parks and other people with dogs. The lady should have at least apologized. Glad Brennan wasn't hurt too badly.