In an incident suspiciously similar to the Ken McElroy episode-except that there was no bullying redneck, no pickup truck and no gunfire-hundreds of residents of Pont St. Esprit in France found themselves hallucinating wildly. 7 died and many were institutionalized, and speculation is that it could have been ergot poisoning… or a CIA plot.

Some of Our Research:
From the wiki
A firsthand account
Blaming the CIA