The pic was sent to us by someone who saw it in a social networking site. My son is with a small group of friends in a field trip outside of the country. This is his first time to be away. We don't know if the pic was intended to be a joke since it was posted online. But seeing it, I felt like a cold water washed over me. My initial thought was I only see this kind in the movies or TV shows & I'm now looking at my son doing it. It was scary. He'll be home in 2 days. He has a part-time job & goes to school full time, too. I'm afraid he's just going to let us hear what we want to hear & still go on doing drugs/smoking. Pls, any advice will be appreciated. Thanks!