graphic. >> stop, stop. get off of her. >> so what's driving this? joining me now to break it down is dr. robbie ludwig psycho therapist and author. i mean, growing up, i never saw anything like this. i mean, if anything, there was a hair pull by accident, doctor. what do you think is driving this right now? >> well, the studies are inconclusive and whenever we see girls acting like this, it's shocking. and it's mystifying because we don't tend to think of women fighting or girls fighting like this. so there is disregulation and we really want to understand what's