I don't care who knows I smoke, I just don't feel like getting caught. I value my MJ a little too much to go walking down the street and risk a cop taking it up or 'causing my dad to have to pay a ticket. And if someone doesn't like weed then I don't think they should have to smell it on the streets or have it smoked in their face. But yeah, pot is definitely less dangerous than alcohol and less harmful to your body than cigarettes..