I have two boys 3 years apart, my older son is 17 years old.  A few days ago, him and his younger brother were doing their usual banter / teasing / taunting, it started to escalate.  I overheard screaming, I could hear my younger son repeating 'please leave me along' over and over.  I went in to see what was happening and because the bantering went to far, my younger son threw an empty container at him, my older son then backed him into a corner so he couldnt get out of and was screaming in his face 5cm away. Totally, intimidating him and very aggressive.  My younger son is fearful of getting hurt.  I explained to my older son trapping him and being agressive was not the right thing to do and he started screaming at me.  F off, get the F out of here, etc and smashed something ont he wall.  When I asked him not to break things he was screaming again, F off you are unbelieveable etc.  I left to diffuse (I was scared).  I spoke to him about an hour later saying it wasnt right, he was just saying its my right to do that, 'I am no **bleep**, I am not going to back down etc etc' then the next morning he wakes up and back to his 'charming self'.  Last year he was suspended a couple of times from school, we took him to a psychologist and he did a 10 week program called Stop / Think / Do.  I am not sure what to do?  To be honest, he scares me and when he gets like this he can upset the whole house.   My younger son couldnt manage school the day after, he kept on crying.  Does anyone have any advise?? ... View more