She'll be 8.
Her behaviour at home is absolutely diabolical. Screams at us, refuses to even attempt to do as she's told, yells, screeches, won't do homework, is vile to her sister and her parents and she makes home life a misery.
I've threatened to cancel if she continues screeching us and hurling abuse at us but she's started up again.
AIBU to carry through with this threat so that she might understand she cannot behave like this?