Dilbert sits in his chair and Dogbert sits on the hassock. Dogbert says, "So, since Columbus is dead, you have no evidence that the earth is round." Dilbert says, "Look . . ." Dilbert continues, "You can ask Senator John Glenn. He orbited the earth when he was an astronaut." Dogbert says, "So, your theory depends on the honesty of politicians . . ." Dilbert replies, "Yes . . . No, wait . . ."