On Location (1921)

Snub is an street sweeper with OCD, living in a neighborhood full of fussy people. He is sweeping the street when he anticipates a cop who is about to throw some litter into the road and dashes over to catch it in his cart. He then tries to save a drunken man from falling into the road before stopping his cart to pick up a solitary leaf which has dared to fallen upon the ground. The eccentric and obsessed street sweeper meticulously disposes of the leaf but when he turns around he finds half the tree has shed its leaves at that very moment