Dilbert and a woman sit at a table in a restaurant. The woman says, "Thanks for asking me out. Would you like to see my operating manual?" Dilbert asks, "Operating manual?" The woman explains, "It's an aid to men. It covers everything from 'buying flowers' to 'opening doors.'" Dilbert reads the manual and says, "Looks like you're due to have your jewelry rotated." The woman replies, "Every thirty days. Saves money in the long run."