I've had pits for about 6 years now, Miss Piggy is about 3, I've raised her and she's helped raise my kids. She's been a great dog, well mannered, doesn't chase the horses, never been people aggressive. Her last litter of pups was born about 4 months ago. Since they were born, she has become real prejudice towards other dogs. My boyfriend has hunting dogs, blackmouth curr, walkers and cattahulas, whom she has always lived side by side with and has never showed aggression towards them either. However, in the past 2 months she has killed 5 of them.. Never touching the other pits or her pups. She's done this before, after her previous litter. She's Boudroux and Chinaman breeding.. Is this typical of her breeding? She has an appointment next week to be fixed.. I hope this ends her reign of terror. By the way to everyone else, she's her same sweet self.