Not sure what to do, just found out my good friends daughter is making some very dangerous life choices. My daughter and her daughter are casual facebook friends. My daughter told me some information tonight and I am just not sure what to do.

I hate to even say what she is doing it is really awful...so if this could endanger her should I tell my friend. My daughter said it would devastate her and their daughter probably wouldn't change anyway. I know it would be embarrasing coming from me so I was even thinking about letting her know anonymously.

If I say nothing what if someting happens and I said nothing?