The villain is trying to have his way with the beautiful princess. He lifts up her dress and things look bad... but what's this? The maiden has quietly pulled a knife from her garter! She stabs him, putting an end to his evil ways once and for all. The Chastity Dagger is the favored weapon of delicate, civilized young ladies in fantasy and historical works. It is almost always used as a means of self-defense when in danger of being raped, robbed or kidnapped, but a Femme Fatale may also use it in conjunction with her feminine charm to assassinate a male character while he is distracted.