Taking place the night before the Sicilian Expedition and interpreted as a bad omen, for 10 points, identify this act of (*) vandalism which involved statues of Hermes meant to signify good luck.
One participant in this event was an Attic orator who defended his actions in the speech On the Mysteries, and was prosecuted by Cephisus. During the investigation of this event, it became known that some of the suspects had performed the Eleusinian rites in front of non-initiates in a scandal called the Profanation of the Mysteries. Alcibiades volunteered to go on trial after he was accused of being the perpetrator of this event. Taking place the night before the Sicilian Expedition and interpreted as a bad omen, for 10 points, identify this act of (*) vandalism which involved statues of Hermes meant to signify good luck.
One participant in this event was an Attic orator who defended his actions in the speech On the Mysteries, and was prosecuted by Cephisus.
the mutilation of the herms [accept castration of the herms or Herma or Hermai, or equivalents. Prompt on "Sicilian Expedition" or "the night before the Sicilian Expedition" early]]