The Varmint (1917)

John Humperdink Stover, otherwise known as "The Varmint" for his pestiferousness or as "Dink" when in special favor, was expelled from a boarding school and sent to Lawrenceville Academy. On the stage on the way to the school he meets a silent man whom Dink sizes up for a salesman and he proceeds to wax eloquent on the subject of his past career and the reason he was expelled from his previous school.