I just had a chat about drugs with my son this week.
It always bothered me that I was told "Drugs are bad, mmmkay?" but when I met some stoners that weren't living in a van down by the river, it made me wonder what else they had lied to me about, and I disregarded EVERYTHING they warned me about. Got in a little trouble, but just enough to learn from, and I've kept my shit together. I've also seen other's lives fall apart.
So, I was open and honest with him. I told him to be smart. Remember that alcohol makes you act without thinking, and pot makes you think without action. Set rules for yourself so when your mind is altered, you don't need to rely on it in tough situations. Everybody's drunk and wants to go for a ride? Don't get in that car. You will want to act without thinking, so remember your rule. You have a big paper due on Monday? Don't smoke until it's done, because you won't get more creative, you'll just not do it.
And I told him that there are lines he shouldn't cross. Meth, opiates, and cigarettes. I told him about a friend who's been hooked on meth for years and how she's ruined the lives of everyone she interacts with. And cigarettes don't really fit in with the rest of that list, but he knows I'm a slave to the things, and I told him how I went from the only non-smoker in the group to over a pack a day for the past 20 years.
I hope he was listening, and respects my honesty enough to stay safe, happy and successful.