Jake, The Fire Company's Mascot

Jake, a miniature donkey, had a slight flaw in his bray. When Pierce and Mack heard him, they immediately thought he sounded like a fire siren. He whistled like a siren, and he was very loud. They decided to make him the fire company's mascot and show him off at parades.
This is a story about Jake being a donkey, a mascot, and a rescuer. It is also about being born with a flaw doesn't mean you can't be an extraordinary donkey.