Answer:
In Shakespeare's "Macbeth," when the protagonist is terrified by Banquo's ghost during the banquet, Lady Macbeth feels embarrased by his behavior. In that matter, she hurries to excuse her husband in front of the guests and claims that he has visions every now and then. Thus, she says that he needs some rest and takes him to their room. There, Macbeth tells her that he has seen Banquo's ghost, and she remembers his earlier vision in which he sees a dagger suspended in the air pointing at Duncan. Finally, she encourages her husband to return with his guests.