How does Saki use satire in the Storyteller?

The man's story can be seen as a satire of the aunt's story, and the author demonstrates that the reader's focus should be on the man's story by describing it in detail, while he only briefly summarizes the aunt's story. The man's story undermines the idea that behaving well will lead to good fortune, and even suggests that an obsession with being "good" can be a fatal flaw. This is symbolized by Bertha's location being revealed to the wolf first by her clean dress and then by her noisy medals.