Dingo the mule grew up believing he was a horse.
When Dingo's best friend told him he was not a horse, he had an identity crisis and ran away.
He was tricked into a job he did not like but through that, he gained great strength, mentally and physically.
He also met other mules.
Finding others like himself gave Dingo a new, positive outlook on life.
He was so happy.
Finally, he could be his true self.