Utiliser "setoff" dans une phrase

1. "All that is very well," said Don Quixote; "but let the shoes and the blood-lettings stand as a setoff against the blows you have given him without any cause; for if he spoiled the leather of the shoes you paid for, you have damaged that of his body, and if the barber took blood from him when he was sick, you have drawn it when he was sound; so on that score he owes you nothing