the likelyhood is if her has explained everthing to his friends and then given them the weed, that they aren't high due to the placebo effect. i dont think he is crazy, i think hes got issues though. the only was to prove this is

1. get someone he has never met to buy the weed

2. get some weed from someone who has grown it themselves

3. grow his own weed

then he can solve it.

peace and progress
snow