Cow and Chicken - Season 3 Episode 25 -

Mom and Dad are disgusted that Cow and Chicken believe the world is round, so they hire Dad's brother, Longhorn Steer (who really is a steer) to tudor Cow and Chicken. Longhorn fails, but Cow and Chicken learn that he doesn't want to teach...we wants to be a normal steer, get married, have kids, hold a job, and stampede.