Baby joe(olde english puppy) also goes for "thekill" she locks on and it freaks me out i feel like im watching a "dog fight". I put some vinegar in a spray bottle to spray the puppy when she starts the butt thing. The main triggers are food and i mean the smell not even the fact of them having it because they eat in seperate rooms and protection. We were playing tugowar with Mr.Beefy and my girls thought he was going to bite us so I had to lock them up or they would have attacked him. My alpha(georgia) tackles him and asserts her leadership but when i say" no ma'am go sit down", she stops. Baby Joe on the other hand locks on for the kill and it takes ALOT for her to release. I know that we as people have to become the "leader" of our pack. I know that Georgia and Mr.Beefy know I am the "leader" but baby joe does not. I was told to put her on her back and hold her down while looking in her eyes until she submits and looks away. I have a plan but if it will work i dont know. Along with at home behavioral training by myself and TONS of exercise so maybe she is to exhausted to fight i'm also going to try some lavender oil spray on her bedding and just to keep around incase she gets "the urge" to attack. Really wish Ceasar Millan would join this group ....we could use his advice. i hope everything works out for all of us maybe we can give eachother feedback on whats working.