LADY MACBETH: What, quite unmann’d in folly?
MACBETH: If I stand here, I saw him.

– William Shakespeare

Macbeth, Act 3, Scene 4. Lady Macbeth again attacks her husband’s manhood over his paranoia and fears and imagining ghosts at the banquet. Macbeth, displaying signs of madness, insists that he saw his friend Banquo’s ghost.