Pete and Repeat were sitting on a fence. Pete fell off. Who was left?

Pete and Repeat were sitting on a fence. Pete fell off. Who was left?

This is a joke that is disguised as a riddle. The punchline requires the listener to respond "Repeat", and then the jokester repeats the entire joke as if they took repeat to not be the name of the person, but to be a command to say the joke over.

This is funny because the jokester is intentionally misunderstanding the listener's response.

This is my sister's second-favorite joke.