One evening, a fox started learning English by eavesdropping on a human family's bedtime stories.
Fox 8, an eponymous protagonist in the story by George Saunders, doesn't write perfect. He makes a lot of spelling mistakes, and is barely able to speak "Yuman" after hiding in the bushes outside a human's house.
Fox 8 thinks the "Yuman" voice sounds great, and is particularly drawn to the human bedtime stories. The most difficult thing for him, however, is to listen to the story of The Hen and the Fox. Oh, the fox is depicted as a sly villain tricking chickens. None of this is true according to Fox 8.
Witnessing human's cruelty is just another piece of evidence that fox is not sly, not as mean as the human worker who killed his companion fox who ventured into a human mall's food court.
What's the moral of this story? I think the dark joke should be from the last piece of advice from Fox 8: "I know you Yumans like your stories to end happy. If you want your stories to end happy, try being nicer."