Storytelling is a terrific way to communicate. When you start a presentation with a story it calms you down. When you make a point with a story it can be dramatic and memorable.
Stories are good. Long stories, with lots of side bars, back stories so long you need to take a bus; asides, explanations and other interruptions are bad.
Construct the story in a manner that allows it to flow easily. If there are things that happened in the story that are extraneous to the reason you’re telling it, don’t mention it. You don’t have to tell a story exactly the way it happened nor in the order the events occurred.
Practice telling the story among friends and relatives. Why should they be spared? If you watch their faces as you tell the story, you’ll quickly learn where to edit.