I have three dogs. Two of them are pitbulls, one female and the other one male. The other dog is a small lab mix. The other day my dogs got in a fight. The two pitbulls ripped into the lab. It was a really serious fight. They have known each other for two years except one of them who came in about 6 months ago. I have been told that when pitbulls are in a pack that they are known to turn on one of the pack members. That if dog A has a problem with dog B, dog C will tag along with dog A and attack dog B. They said it was a pack mentality and I want to know if that is true.