you just described my neice. My brother tried the disapline route with no improvement. Just for your piece of mind, please have her evaluated by the best pdoc you can find. In the case of my neice, there was a treatable illness there...we have seen a lot of progress and it is safe for others to be around. She still says shocking things sometimes but the physical acting out has stopped. She has even shared with us that before she got treatment, she said she did not feel like she could not control the hitting, kicking and biting.