You really can't blame the Parent here , he did everything right. Its the Damn KID ! I know for a fact that all teenage KIDS are retarded. How do i know you ask ? I have 2 teenages right now and i can assure you they are both RETARDED. They never where retarded before but when they hit that magical age of 13 Boom instant Mental Retardation. The Good News is most teenages will outgrow this temporary state usually by the time they are 20 or so. Some take a bit longer and have been known to stay retarded well into mid life . I myself went through this age where i knew everything and wouldn't listen to anyone's advice . Let anyone say "my kid would never do something like that " Sure wait till they are 13 and up im ,warning ya.
Having been there, I really feel for you.
But that's funnier than hell.