When his parents surprise him with a potty, Caillou is eager to learn how to use it, even if at first sometimes things do not quite work out the way they are supposed to.
"Mamá tiene una sorpresa para Caillou: ¡su propia bacinilla! Tras various intentos, algunos accidentes y algunas carreras, Caillou aprende a pedir su bacinilla cuando la necisita."--