I have the same concern with my wife picking up our kids every day. I know that she has picked them up when she was drinking. I could tell from texts and phone calls. I don't know how to handle this. Do I tell the teachers to watch it? She was drinking (secretly) at a playgroup last Friday and one of the wives had to call me to tell me she was driving our kids and my wife home. She was not aware of her problem until that day. I worry daily about drinking and driving. Any advice? Call police, teachers, who else?