Hi, my friend has 3 boys aged 12.5, 8 and 4 and just lately the oldest has become quite a handful. He answers back, is cheeky and is very defiant (more so to Mum rather than Dad) now that part I think is probably the norm for that age group but in the last few months he's turned violent as well. He hits out and punches and kicks his mum. Last night he not only hit, pushed and kicked her but started to smash things up and trash the bedroom. She has tried not to react but last night she had to pin him down to stop him attacking her. Her dh came home and got him to clear up but didn't deal with the violence. My friend is at her wits end. She's spoken to GP about it and he's offered to do a behavioural referral but her dh won't agree. What advice/help can I give her?