14 year old DS's behaviour has been really difficult lately, he's become angry and violent and I just don't know how to deal with him anymore. I know that sounds bad, I'm his mum and he's my responsibility but he just won't listen to me and him being much taller than me now it's hard to stop him. He seems to think he knows more than me, everything I say is wrong apparently. Today it's because he had to come home for tea at 5:30, got annoyed with me about it, started shouting, so I didn't let him go out afterwards, he threw a chair then walked out the house.