I know it's hard to see a friend go down a path that we can clearly see is going to do them more harm than good. But sometimes trying to talk them out of it won't do any good either. The only way that they'll see it is if they fall. I know that we're supposed to help people we see who are potentially putting themselves in trouble, but sometimes it's best that they find things out for themselves and learn from that. And when they have learned from it, you have all the rights in the world to go "I told you so" and you should be there for them to help them up again if you aren't sick of them.