Still one of my all time favourites, Robert Shaw was absolutely superb, how he never got an Oscar is a mystery.
Watched a documentry about this last week. The sharks got a bad rap. They didn't kill many men. The fact that no mayday was sent and there was no search for at least three days were the reasons there was so much loss of life. The sharks simply tidied up. But you are bang on. Brilliant scene.
Doesnt help the title gives away the punchline but ... EDIT: George C Scott steals the film - brilliant performance.