Honestly, I don't really understand why there is such debate about this. I do not agree that the dog should be put to sleep, but I do agree you are not the best suited home for her. That doesn't mean lock her outside, or cage her up, it means find a laid back family who has a farm / property and other dogs where she can have the run of the mill, she doesn't meet new people who may scare her, and she just gets to simply be a dog. One of my four dogs is a beagle mix and if he doesn't know you & you come into my house he will bark, and if you try to touch him, I guarantee he will bite you. Shouldn't have tried to touch him. People come over, we put the dogs in the back. Just because the dog isn't cut out for your lifestyle, doesn't mean it needs killed. & to the people saying how it's a danger and it could hurt someone, any dog can and will bite if need be. She doesn't need disciplined for giving a nip when put in a situation that stressed her out, be mindful of her past & keep her accordingly.