Na, what was really in the bottle, because grape juice and demerol would not have turned him in to that much of a nutter. Its more likely that prolonged consumption of distilled metholated spirits and codine based homemade cocktails have had this sort of dramatic effect on him.
And would you believe that he is only 17?
Also i very much doubt that the people laughing knew him, never mind them being his friends.
Nutter