Throughout the play, Macbeth is going mad because he is killing all these people. First he goes mad because he kills King Duncan. After that, he goes mad because he kills Banquo. His madness was demonstrated by seeing Banquo's ghost at the dinner. Even Lady Macbeth has her share of madness when she says that no matter how many times she washes her hands, she will never get rid of the blood on them. To restate the theme of the second scene of the fourth act, Lady Macduff says: “He had none; his escape was madness. When our actions do not, our fears make us traitors” (lines 2-4). She thinks her husband is crazy for leaving his family there unprotected, which ties into the theme of