My 17 year old son smokes pot all the time....I have found it in his room, empty baggies where it was, rolling papers, pipes.....He has been grounded, had his car taken away....you name it. He still smokes it. He truly sees nothing wrong with doing it. I'm fairly certain he smokes it every day. I have tried to keep him focused since he is going to be a senior this year. He doesn't even seem concerned about college or anything else. He does have a job and he never misses work. He isn't mouthy or disrespectful. But he lies a lot. I just don't know what to do....do I send him to rehab? Do I kick him out? Do I just ignore it?