That's not good...
That's debatable, Because if he wasn't high and had only smoked a few times or whatever, then will he enjoy reading that book as much as he would as he was high, will he be as involved in the book as he would be if he wasn't baked?
I don't think so, This rule deffinately works for me, Marijuana for me makes the good things in life a little bit better, it makes me get involved and concentrate on something that I have to do more because I am high, and yeh I manage to smoke everyday 2-10 spliffs, on weekends or a day off it can go higher than that.
I understand you may think it be bad that he needs marijuana to survive or function normally, Which may not be brilliant but i'm pretty sure that in the long run he will benefit from it, Even if it's only once. But if he benefit's from being high, and enjoy's what he's doing and enjoys smoking then he's a winner in my eyes.