I have a 19 year old son that is a huge pot smoker. It has became worse lately and he is always high. He thinks nothing is wrong because he is doing the best he ever has at his job. The problem is...I lost him as my son and he doesn't seem to care. He has younger siblings that used to look up to him but now they hate when he is around and they don't trust him. We have told him that we don't want him doing it but he thinks he is doing nothing wrong because he is doing well at his job. We told him to keep it out of our house which lasts for a little while but then he starts doing it again. I don't want to kick him out but I feel that right now that is my only option. I want my son back. I offered rehab and he laughed at it. Please help!!!!! This is a boy who went with us on a family vacation 7 months ago and now I don't even know who he is!!!!