I know two. One said while he was buzzed on it a "demon" was relentlessly goading him into killing himself. He hasn't been "right" since. The other, a woman, told me her trip was terrifying, filled with crazy, alien-looking creatures talking trash at her. It's taken her months to get over the experience.
Do not play with this messed up, Third World, crap. Find God, answers, direction - whatever - some other way.