It's No Fun to Be Sick! is a 1989 Sesame Street storybook featuring Herry Monster and his baby sister, Flossie. Herry arrives home from school to find out that Flossie is sick. He is upset that he can't play with her, and then irritated that he can't watch his favorite TV show because the TV is in her room and he can't make noise in the house. Finally he is jealous because she gets food on a tray and a new book which their father reads to her when Herry wants to play a game with him. Before falling asleep, Herry pretends that his water is actually medicine just like Flossie's.