Its not uncommon for it to happen that way.
My best friend's brother used to work for their uncle. And he got my bf's bro hooked on heroin while he was working for him.
The only thing you can do is send him to rehab since he's 17 and still legally a minor.

That really sucks...at least it isn't something heavier though. I smoked a LOT of pot when I was a teen...never got addicted to it though and haven't smoked in a LONG LONG time.

maybe your husband is calm bc he's relieved he isn't doing something worse?

"Venting without the desire to look within and improve your situation is simply venting to hear yourself bitch."

..."I'm not mean, you're just a sissy."

Not sure about the laws were you live, but here in canada, a 17 year old is old enough to say they do not want to stay in rehab. My oldest was 17 when he went, and that is what the Provincial health board told me. Once a child hits 16 they can say they do not want to stay, and they do not have to.

I agree with Barbie. My son is now in college and I found out he smokes on occassion. Hey, I did too in college. I also found out he started it when he was in High School. He graduated with honors, got a baseball and academic scholarship to college, and he has maintained a 3.0+ GPA in college (he is in the 2nd semester of his sophomore year.) I did had a frank discussion with him about how it's illegal, etc. (But then again, so is drinking for the majority of college students, but we don't freak out about that either.) With that said, I do believe a frank discussion should be had with a 17 year old about the use of drugs, etc. etc. Find out why he wanted to try it. Is he making good grades, is he withdrawn, are there other signs that could signify a problem? If not, maybe that is why DH isn't freaking out yet? And I would talk to older brother too. Maybe the younger one felt comfortable enough to confide in his brother that he wanted to experiment with it and mayber older brother thought "hey, he's gonna do it with or without my knowledge (and our parents knowledge) so maybe I should be the one to be with him when he tries it." I guess I'm just saying that it sounds like some discussions need to be had with all parties involved BEFORE anyone freaks out. Maybe that is what your DH is thinking too?

This might sounds strange but I would be more upset about one of my children introducing it to another. I see nothing wrong with pot but they way he started doing it would bother me.