I hope everything works out well for the op. I am not.going.to be quick to jump to conclusions only based on what has been said. Its a crazy world we live in. And lots of sue happy people. While the op may indeed loose a lawsuit over the biting of the neighbor, I think that would be wrong. Dogs are smart, and can sense things. If the op was raising g his voice toward the neighbor, warning her not to approach, and she did anyway and made a move toward the dog, no doubt the dog felt threatened and/or felt the op was being threatened. As to the chicken, dogs are predatory animals by nature. And unless the dog was raised with chickens, it didn't know any better. I have 2 dogs and 2, cats. They all get along great. But the dogs also take care of any groundhogs, coon, opossum, etc that threaten their territory. I imagine if a neighbor of mine had chickens, it would be no different, cause they haven't been taught otherwise. But cats are fine, cause they have been taught to ignore their predatory instincts towards them. If I were the op, I wouldn't make any rash decisions just yet. Talk to and get a feel for the neighbor first. Invisible fence, hard fence, etc. No matter what you do, if the dog wants out, it will eventually succeed. And no matter what, its the dogs turf and it will defend it for you. If the neighbor had a knife or gun (which the dog has no way of knowing) you would have been praising. So I guess my question would be, in the midst of all of this, did you give the dog any commands? Or were they all directed at the neighbor to halt which she ignored? If you were giving the dog commands that were ignored, obviously you need to work with the dog some more. But if your commands were only directed at the neighbor, I cannot fault the dog at all.:2cents: