The Unreliable Narrator's Testimony

An unreliable narrator was called to testify in court. The judge asked, 'Do you swear to tell the truth, the whole truth, and nothing but the truth?' The narrator replied, 'Well, Your Honor, I'll tell you what I remember happening, but I should mention I was drunk at the time, harboring resentment toward the defendant, and I may have repressed some key memories. Also, I'm not entirely sure I exist.' The prosecutor immediately moved to dismiss. 'Your Honor, I've worked with this witness before—he's from a literary fiction novel. Last time he testified, the jury spent six months debating whether the crime even happened.'