Grandparents Raising Children Support Group
This community is dedicated to grandparents who are the primary caregivers of their grandchildren. In cases where the parents are not willing or able to provide adequate care for their children, grandparents may take on the role of primary caregivers. Join the support group to find support, share your experience, and get advice from other members.
Our eldest did a flip-out once. She was standing in the hallway screeching her head off. I said "Mom-Mom doesn't play that game. When you're ready to act like a big girl, come out and apologize" and walked away. About five minutes later she came out and did apologize - and never had a flip-out again.
I have no idea if that would help in your case, but it might be worth trying...