Dogbert asks Dilbert, "How was your first meeting with the 'Perpetual Motion Club?'" Dilbert replies, "Great! I learned the secret handshake tonight." Dilbert sticks his hand out and says, "You stick your hand out and spin it around like this." Dogbert asks, "Then what?" Dilbert replies, "Then you just keep on doing it forever." Dogbert says, "That explains why you keep it secret."