DEFIANT, GREETY UNGRATEFUL SON ANY ADVICE/PLEASE HELP!!!!!!!!!!!!!!!!!!!?

MY HUSBAND IS ALCOHOLIC BUT HES BEEN SOBER FOR 4 AN HALF YEARS.NOW MY SON HE IS 15 YEARS OLD HE LIES ALL THE TIME AND I CAN'T TRUST HIM HE ARRVATES THE DOGS HIS FATHER AND HIM ACT LIKE BROTHERS. HE STEALS CHANGE OUT HIS DAD'S CAR IF HE GET HIS WAY FOR EXAMPLE GET A MOVIE GO OUT TO EAT STAY UP AND IF HE DOESN'T THEN HE WILL ACT LIKE THREE YEAR OLD CRING SCREAMING HE HAS ADHD WE GO TO CATAWBA HEALTH AND IT DOESN'T HELP HE EATS ALL THE TIME HE WEIGHS 278 POUNDS EVERY TIME I TURN MY BACK HE EATS HE CURSES NOW ME AND MY HUSBAND HAVE TO ACT LIKE PRISONERS IN OUR HOME LOCKING OUR DOORS WE SENT HIM AWAY SEVERAL TIMES ITS LIKE HE DOESN'T WNT TO BE HERE HIS FATHER NEVER SPENDS TIME BECAUSE MISBEHAVES WHAT AM I SUPPOSE TO DO ANY ADVICE PLEASE HELP!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!