The writers had decided that Buck Nance's brothers should refer to him as 'Captain Cock' when quarreling on the show, and inevitably the sleeveless t-shirt bearing that nickname became the top seller of all Bayou Brethren merchandise.
The writers of the show chose to have Buck Nance's brothers call him "Captain Cock" during arguments, which added a humorous and memorable element to the character. This nickname became a running joke and part of his persona on the show, contributing to his popularity among fans.
As a result, merchandise featuring the nickname, specifically a sleeveless t-shirt with "Captain Cock," became the best-selling item for Bayou Brethren. The nickname's popularity helped boost the show's overall merchandise sales and became a recognizable symbol associated with the character.
