We've had company overnight and my neice brought her springer bitch with them, we have never met her before as she is a ?? 3yr old rescue who only has 3 legs and apparently cute as anything. She turned on holly today who is 9 months when they were out walking/running in the fields and holly retaliated, my beautiful sweet submissive baby had her on the floor teeth and growls the lot. I am so surprised at holly as she has such a mild manner is it just instinct that when she was snapped at she turned nasty she is only 9 months and usually just runs around like a loony and plays nicely with every other dog we meet. We don't know much about the springers past they have only had her a few months and we wondered if she has been abused she seems to be quite posessive over balls etc.