The caption says, "Dog aerobics." Dogbert sits on his pillow. Dogbert lies down and sleeps on the pillow. Dogbert sits up and says, ". . . And a one . . ."
Dogbert sits on his pillow thinking, "I have a busy day ahead of me." Dogbert thinks, "Got to do some pillow-sitting, maybe eat a little." Dogbert thinks, "I'd better pace myself."