147 psychedelic deaths over three years - https://www.ncbi.nlm.nih.gov/pmc/articles/PMC1523208/
I'll have to find a youtube video but there's a good one with one of the psychdelic guru's describing a trip where had mis-dosed (he didn't realize the mushrooms he was consuming were significantly stronger than anticipated) and he ended up stuck in a "loop" of not being able to start his car.. for three or four hours. His exprience was distressing but not much of an injury, but he then delves into a story about how a similar loop resulted in one of his friends dying from repeatedly falling into cement.