Well I think I have figured out Sapphire's problem. Whenever I take her for a walk she will act hostile towards some dogs while completely ignoring others. I started asking people if their dogs were female or male whenever I saw an owner out with their dogs. The owners of the dogs that Sapphire acted hostile towrads always responded that they were female( The dogs not the owners ) Sooo it is my assumption that Sapphire has a problem with other female dogs. She is spayed. My question now is what can I do about it? Is there anyway to break her of this or do I just have to make sure she stays away from other females. I don't let her play with any other dogs right now.