There’s a magic mushroom dispensary near my house

I have no experiences with magic mushrooms but I do have a little genetic engineering experience. So I can tell you that mushrooms have been know to mutate. And the mutation is in their chemical compounds - so one mushroom in a patch could be safe but another mushroom in the same patch could make you sick or kill you. Also genetically a mushroom is more related to a human than most fruits and vegetables so it could be considered borderline cannibalism if you eat them. Cheers!