Bad to worse

David was bugging me to take the dog for a walk.  I told him 1)  he must wear a helmet when riding his bike 2)  I didn't want him riding in the street at night on the main road as he does not have lights on his bike.  So he is out riding his bike in the cul de sac as I am going to walk the dog and I tell him to take his bike back and go in.  Yesterday, he kept going in the street for gosh sakes, in the dark, at night with dark clothes on and no helmet.  And it's the law.  And my uncle's head was crushed in in a car accident 2 days ago.  DAvid just gets pissed and throws his bike, literally, into the shed.  I walk around the block and hear David screaming from the other side of the block.  I come home and David is throwing one of his fits because Paul told him to clean up his mess.  Several arguments.  David keeps screaming at me and saying I exagerate too much.  He wasn't ridiing in the street.  UGH!  He is such a liar!  He simply can't face up to his mistakes.  Then he stands up from the chair, throws the chair back and gets in my face and yells "leave me alone!"  He is 12 and is now as tall as me.  I am 5'1" and he is 5'.  So yes, I took it as threatening.  Again he is screaming that I am exaggerating.  I mean, throwing a chair, puffing your chest and screaming in my face is NOT threatening?  And he keeps screaming that he didn't do it.  So Paul comes in and he flips out.  And he gets this big walking stick and begins hitting David's bunk beds over and over until the thing shatters into a zillion pieces, putting dings in the ceiling and big dings on the wooden bed.   I am so tired.  We go to the counselor tomorrow.  Paul says he wants to commit David.  I know that won't happen.  They will probably lock us up first.  I don't know how to get through to this kid.  He blames everyone else.  And he busted the toy he was smashing yesterday out of anger and then, pouff!  Just threw it away.  NBD!  It's like sometimes he just doesn't care.  What does he care about?  I know he cares about the dog.  I guess that is about it.  I am so tired.  I am so tired.