Dilbert's mother sits in a chair and says into the phone, "Dilbert, I found your father. He's been at the 'all you can eat' restaurant in the mall since 1989." Dilbert sits in his cubicle and says into the phone, "He's so literal - he didn't want to leave until it was 'all he could eat.'" Dilbert asks, "When's he coming home?" Dilbert's mother answers, "I'm thinking of joining him. He got a booth."