When I was 20 my dog spoke to me. He was lying under a shrub at the time; he lost the ability to speak when he came out from under the shrub and did not regain it by going back under the shrub. I’ve ruled out all possible mundane explanations. Everybody who would have had knowledge of certain events my dog referenced in the conversation had solid alibis. I know it wasn’t a dream because people I called during the event later confirmed that I had called them and said what I remembered saying. If it was an auditory hallucination then it was the only one I ever had.