Final answer:
Chanticleer, the rooster, uses flattery to escape from the fox, teaching a lesson about the dangers of flattery and the importance of learning from experiences to avoid past mistakes.
Step-by-step explanation:
"The Nun's Priest's Tale" from Geoffrey Chaucer's The Canterbury Tales ends with the rooster, Chanticleer, escaping the jaws of the fox by flattery. The fox had chased and caught Chanticleer, but the rooster cleverly suggests that the fox should boast to his pursuers. When the fox opens his mouth to do so, Chanticleer escapes up into a tree. The lesson learned from this story is to not be so easily flattered or trust flattering words, as they can lead to deception or harm. Moreover, one should always be cautious and learn from one's experiences to avoid previous mistakes.