" I want to be alone. (Sin)
Well, how fine is that? Here it is our wedding day and you wish to spend it alone. Fine, then, call me shoe leather and have done with it. (Callie)
I beg your pardon? Call you what? (Sin)
Shoe leather. You know, the inconsequential matter that you treat upon without thought. (Callie) "

― , Born in Sin (Brotherhood of the Sword #3/MacAllister, #2)