Hi Mallygirl,
the escalation sounds identical to what I used to go through with-my difficult child son.
I had to stop it--especially the physicial part--because he's my size now.
I have never called the police on him. It wouldn't occur to me, just for what went on in your house, frankly. Maybe I have a higher tolerance level. Or maybe I'm just so stubborn I think I can carry the world on my shoulders with-o police help, LOL!
I learned, and am still learning, to distance myself, physically and emotionally, IOW, detach. I am still bad at it (I shouted at him at dinner tonight) but we have been through so much counseling and have learned the hard way to stop the escalation.
You could have prevented the escalation in this instance by dropping the discussion with-the phone. You knew she was getting agitated and yet you continued it. In this kind of circumstance, we, the parents, need to decide how and when to begin and end a discussion or encounter, and it is very important that we think things through. You could have turned and walked away, which I know sounds like she "won," but is not true. Just say, "Time out. We'll talk about this later." So you end it on your terms, temporarily.
When you tried to break the phone, you blew it. Sorry, I don't mean to upset you--believe me, I've done this sort of thing a zillion times--but you cannot engage your difficult child when she is in that mode of operation. It will only lead to disaster, as you clearly found out.
One of the most embarrassing but beneficial things that ever happened to me was last yr, when my difficult child was late for school and our carpool mom was out in front. We had just learned in counseling to let natural consequences happen, and I should have kept my mouth shut and just let them drive away, but on top of it, the mom felt an obligation to drive him, so she waited.
At that point, difficult child decided to change the contents of his lunch, and stood in front of the pantry, hemming and hawing, while I got more and more agitated. I should have just walked away.
I went to grab something out of his hand, he hit my arm, and I grabbed his wrist. It was truly a decisive cliffhanger moment ...
and the carpool mom let herself in the front door and saw (and heard) what was going on. She gently took difficult child's other hand, and in a calm voice, told him to go with-her. She is about 5'10" and athletic. She repeated herself a cpl times and he finally listened.
As an aside, she reminded me, "Do not engage him."
Boy, was I embarrassed.
She has an autistic son so she knows how out of control it can get.
Having someone witness and intervene was the best thing that ever happened. No matter how often we go to therapy, there is still something too abstract about it.
So if I'd been at your house, I would have grown 6" taller, and developed an incredibly calm demeanor, separated you two, let your daughter take the phone (to be dealt with-later, no mistake about it!!!) and would not have had you call the police.
When you daughter calmed down, I would have had you talk to her calmly (that's the hardest part as we all know) and tell her to hand you the phone, so it isn't an act that is perceived as aggression on your part. IOW, if you take the phone, even if it's not by force, she perceives it as an act of aggression. You've got to convince her that it's her idea.
She's clearly very impulsive and needs boundaries. The phone is a good start.
Is she on any medications? I don't see any in your profile.