I am the mother of three children, 17,15 & 12. While the youngest lives with me, the older two live with thier father. he allows them to smoke pot in the house (whether he is home or not). I'm afraid my youngest will want to join them and thier friends. Calling child protective services seems to be my only option, but I'm not sure that will help our relationship. When I told my ex I planned on drug testing my youngest when she came home, he told her to drink lots of water to flush her system out. Any suggestions
