Kinski was crazy, as he fought virulently with Herzog and other members of the crew. A scene from Herzog's documentary of the actor, "My Best Fiend", shows Kinski raging at production manager Walter Saxer over trivial matters, such as the quality of the food. Herzog notes that the native extras were greatly upset by the actor's behavior. Kinski claimed to feel close to them. In "My Best Fiend", Herzog says that one of the native chiefs offered in all seriousness to kill Kinski for him, but that he declined because he needed the actor to complete filming. According to Herzog, he exploited these tensions: in a scene in which the ship's crew is eating dinner while surrounded by the natives, the clamor the chief incites over Fitzcarraldo was inspired by their hatred of Kinski.