Our patient was admitted to an inpatient unit with a well-formed persecutory delusional system and auditory hallucinations following years of heavy drinking. He had attempted to make cassette tapes of the voices he heard saying derogatory things. No antipsychotics were given, and he made a restitutio ad integrum. Two weeks after admission, he sat down with me to listen to the tapes. After intently listening to an empty tape, he agreed with me that there was nothing recorded, but he could not explain why and stated, "I know that the voices are on there because I heard them and recorded them."