"you don't know a thing about psyilocybin"

Well my degree is in botany and plant technology from Imperial College, so I do know things, though I've never been stupid enough to indulge. The real world is wonderful enough for me. You should try it some time. Actually, it could just be that I know a bit more about psilocybin than you do. Keeping a supply of it in your bedroom does not make you an expert, old chap.