Tom,
you are a good friend to be concerned....yes, talking is a good start. Is your friend hooked up to the internet? Maybe after talking nicely to him about your fears, you should have him check out this web site...he might be scared enough to stop after reading some of the personal stories and posts. Hopefully he will realize what a good friend you are and thank you!! Good luck, kiddo, and let us know how it goes.
Brooke