Upon reflection, I realized that some people can tell absolutely hilarious work stories. Work stories!
What is the difference between the exceptional stories that make you choke on your tongue from laughing (or crying) so hard... and the interminable ones? I think I figured it out.
Maybe, you start out with a short version. Very short. Heavy on the plot. Then you wait for a question. You answer the question. Then you wait for another question. Which you answer. The story becomes a group effort. When there are no more questions, the story is over.