as someone who indulges in psychedelics ocasionally, i'll say this: anyone who gives you reality-altering drugs without your knowledge and conscent ISN'T YOUR FRIEND. What a psycho bitch.
I am guessing she was thinking the shrooms would either be regular edible oned, or downright kill them (maybe with a painful puking fever first), rather than the kind that makes ppl high.
Also, who the hell likes cookies that takes like mushrooms?