Another this that is odd, or maybe just stupid is how selfish, yet cowardly Lady Macbeth is, especially after receiving the letter from Macbeth. The first thing that comes to her mind is, "Well, now we have to kill Duncan." Macbeth is the one who has greater power, and he wants the ultimate power of being king just as badly as Lady Macbeth does, but he still has qualms about murdering a man. The nagging, powerhungry queen comes out in Lady Macbeth, and she all but harasses Macbeth to murder Duncan; like the loyal -- or maybe fearful -- husband he is, he kills the king. Oddly, he has no hesitation in murdering the guards, and order a few more murders following that. However, he still runs crying back to Lady Macbeth about the guilt. She simply calls him ridiculous, and sends him off to bed. Later, it turns out, Lady Macbeth is sleepwalking, because of the guilt, so much for just going to bed. She later proceeds to kill herself, most likely because she cannot hand the quilt; it seems as though she, in fact, is the ridiculous one.