[kaytee21]

My yorkie kagan started doing this to our cat tiger who was around long before him she would bite at the side of his neck and just attack. Any time he seemed to become head of her she would do it. Its def a pack order behavior. She wanted to be dominant. One thing I did that I learned from the dog whisperer was I would go to her when she did it and kinda but my hand on the side of her neck (their vulnerable their) and kind of gently lay her down and do a deep growl type sound. she would go belly up, that was showing her that I did not approve of her behavior and I was the alpha in the family. She was also going after my aunts female black lab who was a lot bigger than her she would run out get her at the neck or ear. I would tell her NO! and then again do the motion. It really helped with her it took some time but the gesture worked. That and after I bred her one time it really calmed her. Like the dog whisperer says dogs don't view things the same as humans. Yes they may do some things that make you think so. But its natural for them to view their family as a pack. which they are part of. We sometimes just got to remind them where they are in the pack. I hope this helps a little? It sounds like the same thing I was going through with my girl.