I have a friend that hated me smoking cigs, but in the end he came round to it. Then i started smoking weed at his house and shit, and he was telling me all this shit about how it kills you and blah blah blah. So i got his laptop, showed him all the truth about it and now he tokes up with me, and loves it. It was good to actually teach someone about it, because before i told him about all the government lies he belived it. now he knows the truth