[hittinndquitin]

Hi my girl is 5 months old and playful as ever until these mishaps, tonight when i came home my gf told me that our puppy was attacking her lunging and biting her where ever her mouth landed i didnt see any of this when i came in the door she was happy and playful but 3 hrs later she was playing with my other dog and started to get out of hand with growling and biting my shar peis wrinkles and when my shar pei would give a warning growl shed back off for a moment and then it began again, now i thought it had gone too far so i seperated them. She then started growling and biting my arm as i held her away by the collar. I tried walking out of the room and taking my other dog with me to leave her alone and again it began when i returned in a minute or 2. Both times i seperated her and got the same reaction both times. The second time i put her in her crate to calm her down. I need suggestions on how to control the situation. i have a trainer comming to my home on saturday to help with things like this and obidience training as well. Do all rotti pups go through a phase of like this? she was acting in aggression in my eyes. The closest thing i could find as an explanation is shes trying to be dominant over my other dog and my gf and I as well. all suggestions are welcomed and will be greatly appreciated. Thanks