So You Won't Squawk (1941)

Mobster Louie the Wolf sends an unsuspecting handyman (Keaton) to gather up the collection money owed him, hoping the sap will get rubbed out by Slugger McGraw, a rival gangster. Keaton, however, innocently escapes all the perils that whiz about him without his even knowing it, much to the consternation of McGraw's hoods. When he finally does wake up to Louie's plot, Keaton provokes various policemen to chase him and leads them back to the hoodlum's hideout.

So You Won't Squawk has a runtime of 20 minutes.