Oh, sure, I understand all those feelings (including the wanting to see him get HIS). And I'm certainly not trying to justify growing illegal plants in the yard, or trying to make it sound like it's OK. It isn't. It's illegal, and wrong (by virtue of its illegality). I'm at least as much of a straight-arrow as you are.
I'm just talking in terms of the likelihood of actual harm coming to your son as a result of a couple of plants in the back yard. If you want to tell him how much it bothers you, go ahead. If it feels right to you to chat with your son about it and reinforce that you don't agree with it, that's your decision, too. I just don't want to see you going off the emotional deep end about something that probably won't ever amount to anything.
