So last evening when collecting my children after seeing their dad girlfriend is at drop off.I try to have conversation with ex about plans for children and holidays she keeps butting in (I never speak to her) I become exasperated and walk back to the car she yells fat bitch after me.i then go to service part to fill up with the children when they start screaming.Icant quite make out what they are saying over the petrol pump it turns out they are screaming and crying ....... Is coming she is going to shout at you she's going to hurt you.She must hear this and turns back.I should point out she has come pelting over pushing an unnecessary trolley she has left baby with my ex in one of those baby ones.Any way she's so angry she hurls the trolley causing it to tip over.Then abandons it and goes into shop.She has been verbally abusive to me over the phone which is why I insist on meeting in public although strictly speaking she has no need to be at drop offs pick ups.Over the summer she was so verbally abusive to ex that I had to collect the children early as they were so traumatised.Ive reported to non urgent police line and had an initial appointment at the solicitors but actual appointment not until next Tuesday as that's the soonest I can see family law specialist.In the mean time what can I do to protect myself and my children I've always had informal arrangement with ex but increasingly he is unable to recognise that his girl friends behaviour is unacceptable and damaging.I hate being in this situation I feel so threatened as an adult I can't begin to imagine how the children must feel.Any legal or other wise advice great fully received.