I had a phone call this morning from DS school advising me that he has been involved in bullying another child with two Of his friends. I am absolutely disgusted, extremely disappointed but honestly not surprised. His behaviour has deteriorated markedly since the start of year 4 and since he has become friends with quite a disruptive child in his class. He is now rude, argues and answers back, he has no respect for grown ups and to be really honest, I don't know what approach to try with him next. I had a phone call from another parent before Christmas saying that DS and the disruptive "other child" had been mean to her child, and I came down upon ds like a tonne of bricks - iPad confiscated and he was banned from his favourite hobby until he earned it back, loss of privileges etc. I've been rewarding good behaviour and I've reinforced that if there's a problem I need to know about it and hear about it from him, but it largely seems to have been disregarded. Whenever he's in trouble this "other child's" name comes up and I'm sick of it - I'm fully aware that other child is not only to blame and ds is responsible for his own actions, but he's been told before about making sensible friendship choices and again this advice has been disregarded- we don't mix with other child outside of school at all. Any tips for what else I can do to get him through this?