Perhaps I shouldn't even be posting because I haven't read prior threads about Mr. Biggles. Personally I could never keep a dog that attacked either myself or a family member. As a former vet once told me, "there are too many loving dogs languishing in shelters who will ultimately be PTS." In other words, why not give one of them a chance. This was his thinking on euthanizing a biting dog. It may sound simplistic but I sort of have to agree. In this particular case, it does seem to me like there is a lack of stability in the home environment. For that reason alone, I would suggest no more pets until the current situation changes.