Marijuana is bad

[Oppositional P]

if you're talking about what I think you're talking about then Im gonna have to ask you were you got your info from. The drug that starts with 'c' that I know is one of the most addictive drugs around.

I can think of a psychology text that states it clearly, but that's just one example. Usually insuflation is specified, but I still know examples that fit that bill