The rescue lady took him yesterday to a new foster, a woman who has experience dealing with bad Boston behavior. He really is the sweetest, quietest, most stoic little guy outside of that biting thing, and even then he doesn't seem to actually use teeth, so I hope he can get the help he needs and become someone's wonderful family dog. A part of me would like to bring him home for good but I'm not sure if I'm contributing to his instability because of my high stress level.