It really isn't that bad. I have 2 sets of friends, 1 group who smoke every Friday (who I hang with on Saturdays) and another who never smoke (who I hang with on Fridays).
Sometimes I smoke with the first group, but I'm no pothead C:
Marijuana isn't physically addictive, but you can get psychologically addicted to the feeling. And the smoke is much worse that a cigarette. Don't try to bullstuff anyone, Yuki. :P