Berenguer and Agapita are brother and sister, and Wenceslau is their friend coming from the space. He is a tiny little robot who visits them and loves to ask many questions to prepare reports on the humans. This time his report is about laughing: when do humans laugh? Agapita and Berenguer try to show him, saying some words like “peeing” or “poop,” but Wenceslau understands that humans laugh when they talk about things one does in the bathroom. In order to help him further, Agapita and Berenguer, carrying Wenceslau in one of their pockets, ask their parents… but adults say things that are so strange that even their children don’t understand them. Wenceslau is about to conclude his report. Upon reading it, he realizes that he has just written an informing report that actually doesn’t inform about anything at all… This makes him laugh, in his peculiar extraterrestrial way, jumping and making all sort of metallic noises. He has discovered how nice it is to laugh!