Pepito spends his days making faces at the girls, aiming his slingshot at them, and dressing up as a ghost to scare them. His behavior escalates to animal cruelty; he captures neighborhood animals for his personal "menagerie" and even builds a small, functional guillotine for chickens.
Pepito 's behavior eventually leads to a disastrous encounter with a pack of dogs while he is attempting another prank involving a cat. He is injured and must be rushed to the hospital, where he is treated by Doctor Cohn . bad hat
The girls and their caretaker, Miss Clavel, watch as the Spanish Ambassador's family moves into the neighboring house. Madeline immediately labels the young boy, Pepito , a "Bad Hat" due to his mischievous behavior. Pepito spends his days making faces at the