Twelve short stories were written about a real-life collie dog, Lad. Lad's adventures (stated as fiction, possibly real stories) almost always focus on his obedience to a human without them having to use any force.
Lad: A Dog is a 1919 American novel written by Albert Payson Terhune and published by E. P. Dutton. Composed of twelve short stories first published in magazines, the novel is based on the life of Terhune's real-life rough collie, Lad. Born in 1902, the real-life Lad was an unregistered collie of unknown lineage originally owned by Terhune's father. (Summary by Wikipedia).