Um Cachorro Bem Treinado (1980)

Cebolinha, having read a book on dog training, decides to train Floquinho to protect him by attacking Monica when she poses a threat. However, when Monica approaches to confront Cebolinha about tying knots in Samsão's ear, Floquinho mistakenly attacks a scarecrow instead of Monica. Consequently, Cebolinha ends up getting punished once again.