Sir Gawain and the Green Knight
Having reminded Gawain of the appointed time, the Green Knight  rides off. In his struggles to keep his bargain, Gawain sets off on his search. His honour is called into question several times. Gawain avoids several trials on his way. Finally he meets the Lady Bertilak, who tries to seduce him. He avoids this, but accepts a gift from her. He is bound to give the gift back to his host (who actually is the Green Knight in another form). When the day comes for the Green Knight to strike, Gawain kneels... When the Green Knight strikes, he nicks Gawain's neck, but otherwise Gawain is unhurt. The Green Knight explains that the nick is payment for Gawain's only fault, keeping the small gift.