From the Horse's Mouth (Sabrina the Teenage Witch #39)
A horse is a horse...
Staying on a horse is hard, and learning to ride is even hearder. Especially when, for her Phys Ed beginner equitation class, Sabrina is assigned to ride a cranky and lame critter. His name? Mission Impossible. Uh-oh.
If Sabrina can't learn basic horsemanship in the next two weeks, snobby classmate Debra will snicker, and worse, Sabrina's horse might be sold to a run-down rental stable. There's no time for horsing around. Looks like this might be an impossible mission for Sabrina, until Mission Impossible starts talking!
Diana G. Gallagher