The Life and Opinions of Tristram Shandy, Gentleman Book 7, Chapter 34 Summary
Tristram insists that he owes the king nothing. The commissary (that's who the guy is) says that Tristram actually owes 6 livres and four sous for the next stage of his journey. Tristram explains that he's planning to take a boat, but the commissary doesn't budge (just like the ass, eh?).