 When he got to Hailing Island, he would open the hatch on the side of the boat and throw these vulcanized... These floating rubber things. ...into the sea, all daisy-chained together. And at the end of them, there was a light, a man overboard light, which would live upside down. And when it hit the sea, it would splash up in the vertical position. The plunger would drop. The light would come on. And then two guys in rubber dinghies from Hailing Island...