Who topples a bust onto their own head?  Answer the above question based on the context below:  In 1917, Stan and Ollie are drafted into the American Expeditionary Force to fight in World War I. Their ineptitude during basic training antagonizes the drill sergeant and they are assigned to kitchen duties. They misunderstand the cook's instructions and empty the garbage cans into the general's private dining room. The cook, who is thrown in the stockade with them, curses their "snitching" and threatens them with violence after they are released. They escape his wrath when they are shipped to the trenches in France. Serving close to the front line, they befriend soldier Eddie Smith, who receives a Dear John letter from his wife. When Eddie is killed in action, the boys determine to rescue Eddie's daughter from her brutal foster father and deliver her to Eddie's parents. They distinguish themselves in combat by losing control of a tank and accidentally forcing a German platoon into the open. After the Armistice, Stan and Ollie venture to New York City to retrieve the girl and look for Eddie's parents. Using the city telephone directory, the task proves both monumental and problematic as the boys blindly attempt to visit each Smith until they find the grandparents. After taking punches from an annoyed prizefighter and disrupting a society wedding, they resort to telephoning first. While operating their lunch wagon, the boys are approached by an unpleasant civil servant who demands Eddie's child so that she can be placed in an orphanage. The boys refuse, and the man says he will return with the police to have the boys arrested.  They try to secure a loan with their lunch wagon to finance their escape to another city, but the banker smirks that he'd have to be unconscious to make such a deal. While laughing, he topples a bust onto his own head and knocks himself out. Taking this as approval, the boys take what they need from the bank vault.
The answer to this question is:
the banker