Richard Dawkins (Prospect Magazine)
Gerin oil in strong doses can be hallucinogenic. Hardcore mainliners may hear voices in their heads, or see illusions which seem to the sufferers so real that they often succeed in persuading others of their reality. An individual who reports high-grade hallucinogenic experiences may be venerated, and even followed as some kind of leader, by others who regard themselves as less fortunate. Such following-pathology can long postdate the leader’s death, and may expand into bizarre psychedelia such as the cannibalistic fantasy of “drinking the blood and eating the flesh” of the leader.
And then there were those who used gerin oil as lube.