However, based on the title, we can make some assumptions about the potential moral or lesson:
* The importance of planning and preparation: The title suggests that Mr. Wolf's failure stems from a lack of proper planning. This could teach the lesson that rushing into things without careful thought can lead to negative consequences.
* Pride comes before a fall: The phrase "makes a failure" implies that Mr. Wolf was arrogant or overconfident, leading to his downfall. This could be a lesson about the dangers of excessive pride and the importance of humility.
* Consequences of deception: The title could also hint at Mr. Wolf's deception being the cause of his failure. This might teach a lesson about the negative effects of lying and trickery, and the importance of honesty.
To give you a more precise answer, I need more context. Please provide:
* The full title of the story.
* A brief summary of the plot.
Once you provide more information, I can help you identify the specific moral or lesson of the folktale.