I always knew when GD was smoking pot. Finally I told her she wasnt fooling anyone because I was alive and well in the '70's. Like most young people they think grey hair means all the brain cells have leaked out.I find out a lot knowing what questions to ask naive kids.
I think kids just are fascinated in the altered state they achieve when snorting Cinnamon,smoking weed or drinking Morning Glory tea plus any latest over the counter thing they find. Too bad they aren't cautious and some die from curiosity.
