Dilbert sits in his chair reading the newspaper and Ratbert sits on the hassock. Ratbert says, "I'm testing a growth formula at the lab." Dilbert replies, "I'm so happy. I've often thought that the only thing better than a rat in the house is a GIANT rat in the house." Ratbert says, "Yesterday I would have been miffed at your sarcasm. But that wouldn't be 'big' of me." Dilbert says, "Better yet, a giant, WITTY rat."