Shakespeare—that master limner of the ways of kings—probed the frequent conflict between sovereigns and their heirs- apparent in Henry IV, Part I. While the king concerns himself with fractious nobles, treason, and other cares of state, his son, Prince Hal, concerns himself with wine, women, and song. But Hal tells the audience early on that his loose behavior has a purpose, and he promises that, one day, “like bright metal on a sullen ground,/My reformation, glittering o’er my fault,/Shall show more goodly and attract more eyes than that which hath no foil to set it off. I’ll so offend to make offense a skill;/Redeeming time when men think least I will.”
Since Hal at this point in the play has just plotted both a felony and a practical joke on his fellow criminals, this statement might seem dubious. But Shakespeare’s audience, of course, knew that Hal was the future King Henry V and that he would indeed redeem time, and himself, on the field of Agincourt.