Orca II, had no motor and was designed to sink on command. Jaws was the first major motion picture to be shot on the ocean, resulting in a troubled shoot, and went far over budget. David Brown said that the budget "was $4 million and the picture wound up costing $9 million"; the effects outlays alone grew to $3 million due to the problems with the mechanical sharks. Disgruntled crew members gave the film the nickname "Flaws". Spielberg attributed many problems to his perfectionism and his inexperience. The former was epitomized by his insistence on shooting at sea with a life-sized shark; "I could have shot the movie in the tank or even in a protected lake somewhere, but it would not have looked the same," he said. As for his lack of experience: "I was naive about the ocean, basically. I was pretty naive about mother nature and the hubris of a filmmaker who thinks he can conquer the elements was foolhardy, but I was too young to know I was being foolhardy when I demanded that we shoot the film in the Atlantic Ocean and not in a North Hollywood tank." Gottlieb said that "there was nothing to do except make the movie", so everyone kept overworking, and while as a writer he did not have to attend the ocean set every day, once the crewmen returned they arrived "ravaged and sunburnt, windblown and covered with salt water". Shooting at sea led to many delays: unwanted sailboats drifted into frame, cameras got soaked, and the Orca once began to sink with the actors on board. The prop sharks frequently malfunctioned owing to a series of problems including bad weather, pneumatic hoses taking on salt water, frames fracturing due to water resistance, corroding skin, and electrolysis. From the first water test onward, the "non-absorbent" neoprene foam that made up the sharks' skin soaked up liquid, causing the sharks to balloon, and the sea-sled model frequently got entangled among forests of seaweed. Spielberg later calculated that during the 12-hour daily work schedule, on average only four hours were actually spent filming. Gottlieb was nearly decapitated by the boat's propellers, and Dreyfuss was almost imprisoned in the steel cage. The actors were frequently seasick. Shaw also fled to Canada whenever he could due to tax problems, engaged in binge drinking, and developed a grudge against Dreyfuss, who was getting rave reviews