Dilbert sits in his chair reading the newspaper and Ratbert stands on the armrest. Ratbert says, "It used to bother me that the air was getting polluted and unbreathable." Ratbert continues, "But I realized that rats are hardier than humans - so we'll get all you stuff after you wheeze your last breath!" Dilbert says, "I think I'll go for a walk." Ratbert says, "Hey! Why not drive?"