I am new to This so I am after some advise I am really worried about my 9 year old niece we have been through a rough year and she is not handle it well at all.loosing her temper and hurting her younger brother and also my sister(her mum) the other day she even tried to stab my sister with a kitchen knife and his one in her wardrobe!!! I am very concerned as I don't know what to do someone is going to get hurt but my sister won't do anything because she dosnt want social services to take her away .