This is one of my favorite “micro-fiction” short stories from Fredric Brown. He went through a phase in 1954 where all he wrote was science fiction short stories that were less than a page in length. Generally they just contained a single joke, a single cool or thoughtful idea, and that’s it. Of the many, many short stories he published in that year, this is my favorite.
It’s shorter than any of my other readings, so you should be able to make it through to the end! And make sure you do: the entire point of the story is the “twist” in the very last line.
Here is the selection of possible video thumbnails that I was considering. Did I choose the right one?