Describe the scene in which Schindler orders the boxers to be hosed down. How are the Nazis depicted?

The Nazis are content to jet the Jews bake in the boxcars in the hot sun. Under the guise of it being a joke, Schindler convinces Goeth to tell his men to hose down the box cars. The Nazis are depicted as inhuman as they make fun of the Jews as the cars are hosed down.