Identify and explain any fallacies of defective induction or of presumption in the following passages:

In a motion picture featuring the famous French comedian Sacha Guitry, three thieves are arguing over division of seven pearls worth a king’s ransom. One of them hands two to the man on his right, then two to the man on his left. “I,” he says, “will keep three.” The man on his right says, “How come you keep three?” “Because I am the leader.” “Oh. But how come you are the leader?” “Because I have more pearls.”