The engineer, using his technical skills and knowledge of physics, ties himself to the raft using a rope. He dives into the water and swims towards the island pulling the raft behind him. Sharks attack. The lawyer and the accountant barely manage to save him.

Next, the lawyer dives in planning to use his golden tongue as well as speedy footwork to get the castaways to the island. At once, the sharks attack and the accountant saves him.

Finally, the accountant dives into the water not even bothering with the rope. The sharks sweep in, but instead of attacking the accountant, they push the raft to the island. The engineer and lawyer are amazed. "How did you do that?" they ask. "Professional etiquette," he replies.