My 2nd oldest is 22 and still lives at home. Due to ADD and dyslexia he has limited education resulting disabling behaviors enabling social security income. He has no job, or no participation in household activities / chores and worst of all he smokes that K2 crap. He does this because he's on probation for theft and it won't show up on drug screens. He sits on his *** every single day, now developing a wicked cough...due to....guess ? That K2 crap. I had a near-breakdown the other day and gave up arguing with him...giving him the indication it was OK to continue smoking...and do it in the house. I am drawing the line. I threatened to evict his ***.....he thinks he's going to convince me it's OK to smoke and legal. He's said he'll produce a 2 page report to say it's OK, regardless of his daily hacking (and nearly puking..he cough's so violently ).