Dilbert sits on the couch and Dogbert sits on the backrest. Dilbert's mother offers him a cookie and says, "I'll never understand what you do for a living." Dilbert replies, "I told you I'm an engineer, Mom." Dilbert's mom says, "So you say, but you also say you spend all day in meetings. When do you do any engineering?" Dilbert replies, "Good point. Let's just say I'm what the experts call a 'knowledge worker.'" Dilbert's mother asks, "Which experts call it that?" Dilbert replies, "I don't know." Dilbert's mom asks, "What's the name of the product you're working on?" Dilbert responds, "I don't know what the acronym stands for . . ." Mom asks, "What kind of market penetration and return on investment do you expect?" Dilbert says, "Um . . . I don't know . . ." Dilbert's mom says, "Oh, dear . . . Well, I'm sure you're very punctual." Dilbert shouts, "Ask me another question!! C'mon . . ." Dogbert asks, "Why do they call you a 'KNOWLEDGE worker'?"