The four doomed flights of 11th September were, in a very real sense, Gerin oil trips: all 19 of the hijackers were high on the drug at the time. Historically, Geriniol intoxication was responsible for atrocities such as the Salem witch hunts and the massacres of native South Americans by conquistadores. Gerin oil fuelled most of the wars of the European middle ages and, in more recent times, the carnage that attended the partitioning of the Indian subcontinent and, on a smaller scale, Ireland...Gerin oil addiction can drive previously sane individuals to run away from a normally fulfilled human life and retreat to closed communities from which all but confirmed addicts are excluded... Strong doses of Geriniol can also lead to "bad trips," in which the user can suffer morbid delusions and fears, notably fears of being tortured, not in the real world but in a postmortem fantasy world...Medium doses of Gerin oil, though not in themselves dangerous, can distort perceptions of reality. Beliefs that have no basis in fact are immunised, by the drug's own direct effects on the nervous system, against evidence from the real world. Oil-heads can be heard talking to thin air or muttering to themselves, apparently in the belief that private wishes so expressed will come true, even at the cost of mild violation of the laws of physics...Two points if you realized Gerin Oil is an anagram for religion.
[Hat-tip suppressed so that the well isn't poisened.]