The Skipper does not have a tale in "Canterbury Tales." He is mentioned in the Prologue, but he does not have a tale.  The "Shipman's Tale" is a tale where "the Shipman is clearly bored with morality. He wants nothing of a sermonizing nature in his tale; its only purpose is to entertain. His tale is another example of fabliau, with its emphasis on trickery and sex. Like many of the other tales, this one centers on a theme of marriage. The beautiful wife in this story manages both her husband and Don John by bestowing her sexual favors with enthusiasm to achieve her own ends."