I had a friend in high school who smoked in his science class. He sparked the bowl and would blow the smoke in his shirt. I can't believe he thought that would kill the smell, but he did. Needless to say he had charges pressed on him, got kicked out of school for a bit, and then got placed in a special class for trouble makers. This kid would raise all sorts of hell, so this was a reoccurring event of "fucking over the system" LOL.