We were pleased to welcome anthropologist Julien Bonhomme, author of the book The Sex Thieves: The Anthropology of a Rumor for a conference and debate on Tuesday, May 9th, 2023. This meeting was moderated by Nicolas Dodier and Michaël Neuman.

Strangers are accused of stealing or shrinking people’s genitals during ordinary encounters in public spaces: a rumor that leads to violent reactions that can go as far as public lynching of the accused. The sex thieves rumor first appeared in the 70’s in Nigeria, before sporadically spreading for a period of 30 years in about 20 countries in West and Central Africa. In his book The Sex Thieves: The Anthropology of a Rumor, Julien Bonhomme shows how, with the sex thieves rumor, witchcraft stops being a local hearsay and becomes an urban, modern, and transnational rumor.

To understand such a phenomenon, the author sheds light on the very ordinary concerns on which rumor is based. He details the accusations and incidents as well as the various protagonists of “genital theft” cases: the alleged victims, mostly men; the accused, strangers or even foreigners who sometimes confess the theft to avoid public lynching; the crowd within which violent acts can emerge; and local authorities who try to restore public order as quickly as possible and avoid mob justice.

How and why does a rumor spread? Where is it discussed? How is it seen by different people? To explain how rumor appears, spreads, and disappears, the author analyses the mechanics of social communication and cultural transmission. He reveals the polyphonic nature of rumors, which create beliefs, raise doubts, and generate criticism. The anthropologist analyses the role played by the media, which documents the cases and labels them (as mystical events or as a crimes), but also spreads the rumor.