Please answer the following question: Please answer the following question about this movie plot. If it's un-answerable, please output "No answer". Question: What did Brody do when he thought he saw a shark? Movie plot title: Jaws 2 Movie plot: Two divers are photographing the wreck of the Orca, Quint's boat from the first film, and are suddenly attacked and killed by a large great white shark, but not before one of the divers' camera gets a photo of the shark's eye. The shark later prowls the coastal waters of Amity Island, killing a female water skier. The female driver of the speedboat tries to defend herself by first throwing a gasoline tank at the shark (accidentally spilling some on herself) and then igniting the fuel with a flare gun. The fire ignites the gas tank and the speedboat explodes, killing the driver and leaving the shark heavily scarred on the right side of his head.In addition to these incidents, a dead killer whale is beached at a nearby lighthouse with large wounds all over its body, which Police Chief Martin Brody (Roy Scheider) suggests were caused by a great white shark. Once again, Mayor Vaughn (Murray Hamilton) doesn't share Brody's belief that the town has another shark problem and warns him not to do something hasty. Later, Brody spots a section of a ruined speedboat bobbing in the surf just off the beach. When he goes to retrieve it, he encounters the burnt remains of the female speedboat driver.Brody angrily grounds his son Mike (Mark Gruner) because of his reluctance to find a summer job, preferring to go sailing every day, and gives him a job at the beach. The following day, while Brody is in an observation tower, he sees a large shadow produced by a school of bluefish, which he mistakes for a shark. In his haste, Brody orders everyone out of the water and fires his gun, causing a panic. Later that evening, he receives the photo of the shark's eye, taken by one of the attacked divers. Brody shows it to Vaughn and his Townsmen, but they refuse to accept the evidence put in front of them. Len Peterson (Joseph Mascolo) (who has built a new resort in Amity to attract people) and the town council fire Brody for the beach incident, with Mayor Vaughn being the only one to vote against dismissal, and promote Deputy Hendricks...
A:
orders everyone out of the water and fires his gun