Haha yeah, they don't now! What I still haven't figured out is: what the hell is the dosage for this. I know that a full grown clementine peel will be enough for a trip, but the weight of the person still will effect it. And I do not know how much is enough for an out-of-body expreince. I cannot believe I did not find this sooner (a fellow stoner informed me this year), why waste money on shrooms?! Tooth paste and a fucking orange is all you need.