It is also told that Sanjuro failed in conducting kaishaku (to assist someone in committing harakiri by beheading him) for a member, but this is not reliable because, according to the record, the member committed harakiri only after Sanjuro's death.
三十郎が隊士の切腹の際の介錯を失敗したと言う話も伝わるが、その隊士が切腹するのは記録では三十郎の死後の事であるため、信憑性は乏しい。