Manny vs Buck

One of the most important scenes in "Runaway Train" was the fight which almost resulted deadly between Manny and Buck. At that moment Manny just went berserk after feeling hopeless of the situation. Although Buck eventually gave in at first agreed to go back outside the train after repeadetly getting kicked, he suddenly became the guardian of the girl when Manny pushed her out of the way. This was about the only time in the movie that you see Buck become as furious as he did. However, the stand-off between Manny and Buck was not what I found significant. Instead it was Buck withdrawing from the fight, and putting down the wrench. Earlier in the Movie when Buck told Manny about wanting to go to Las Vegas, Manny immediately shut him down. He told him that instead he will get a simple cleaning job. No matter how much effort will be put in, every day the boss will point out tiny, dirty spots. However you will not get angry, instead you will look down, and clean it. I feel that this story symbolized the struggle between Manny and Buck. Manny could be considered the boss, and after Buck put in all his effort to try and make it across the train cart, he was punished for failing. However,  Buck decided to suck it up, and withdraw from the fight.