I’m looking for the name of a YA Science Fiction short story that I read in middle school in the 70’s. As I remember it, the story was told from the perspective of a farmer who was tending his fields one day when he sees an alien space craft land in his field. The aliens that emerge are horrendous and disgust and frighten him. As a result he flees as fast as he can. However in the description of his fleeing, it is revealed that the scene takes place on another world and it is in fact the farmer who is the alien. Humans have landed on this extraterrestrial world.