It is raining and Lucy thinks that it is a good day to be crabby. Later, Linus and Lucy go out, taking a single umbrella with them. Linus points out that Lucy had said that they would take turns using the umbrella. Lucy, however, decides not to share her umbrella with her brother. She says that Linus does not need it because he is already wet and it would not make sense for her to get wet also.