What would you have done in this situation with your dad?

Okay so my dad barges in my room while i was about to fall asleep and goes .. your therapist called today and i re scheduled the appointment. so i go okay fine. and he goes shes a good therapist right? im like yeah. and than he goes (out of nowhere) you know why you dont have a car right? because we think you would have killed someone in a drunken accident. (BTW i would NEVER drink and drive.) and he goes, if you think you can ever do anything again with drugs i will report it the court and have you put in jail. (btw i have not even stepped outside the house, only time was yesterday to watch green lantern with a friend) and im like oh? and he goes is that your only response? im like your going to drug test me still? i havent even done ANYTHING . get over it! its getting annoying. i had one incidient. he goes i know eveyrthing you did. (btw this happened 3 months ago) and im like ok.. OUT OF NOWHERE , he threatens to send me to court. and im like i havent done anything, so you can get over it now. and i dont need a therapist. im fine. and then hejust leaves all angrily?