 On the third day, after seeing the size of the shark, Hooper wants to bring along a shark-proof cage, to take photos of it and then to use it in an attempt to kill it with a bang stick.Initially, Quint refuses to bring the cage on board, even after Hooper's offers to pay him $100, considering it a suicidal idea, but he relents after Hooper and Brody get into a heated argument.Later that day, after several unsuccessful attempts by Quint to harpoon the shark, Hooper goes underwater in the shark cage.