from a review by J. E. Barnes of Daniel Pinchbeck's Breaking Open the Head:

Pinchbeck's trials and tribulations while under the influence of a variety of hallucinogens in both familiar and isolated parts of the world are often unintentionally hilarious, even as they suggest a fatally careless tendency in his nature. During one session in the East Village "organized by a couple from California," the author and several others ingest yagé after being provided with "Adult Depends diapers" and "plastic buckets for vomiting." In fact, so many people vomit in Breaking Open the Head that readers will expect to find Vomiting listed in the index.