I admit people to the hospital on a fairly regular basis that are psychotic and hallucinating while smoking or consuming marijuana. Many are hearing the voice of God and/or Satan. Many others think that others are out to hurt them, including their loved ones.
You can see how that could very easily end up in tragedy. I say tragedy, but I consider it an assumed risk of consuming a mind-altering substance.
Wow. So it is true.
Boy have we been sold a bill of goods.