sentences:  Despite his physical size, Arbuckle was remarkably agile and acrobatic.Director Mack Sennett, when recounting his first meeting with Arbuckle, noted that he "skipped up the stairs as lightly as Fred Astaire" and that he "without warning went into a feather light step, clapped his hands and did a backward somersault as graceful as a girl tumbler".His comedies are noted as rollicking and fast-paced, have many chase scenes, and feature sight gags.