What character trait almost leads to Chanticleers downfall in the pardoners tale?

In "The Pardoner's Tale," Chanticleer's excessive pride is a character trait that nearly leads to his downfall. His arrogance leads him to dismiss the warnings of his wife, Pertelote, and to underestimate the cunning of the fox. This hubris ultimately results in him being deceived and captured, illustrating how pride can blind individuals to danger and consequence.