A Hitch in Time is a 1955 cartoon directed by Chuck Jones, produced by Warner Brothers for the United States Air Force to promote re-enlistment.
An airman is looking forward to completing his tour of duty and becoming a civilian. A gremlin sergeant ("Grogan, technical gremlin first class") accompanies him on the way to the discharge office, ostensibly to ensure the airman doesn't decide to re-enlist. The gremlin then presents a series of arguments that superficially suggest that civilian life is better, but cumulatively favor re-enlistment. At the end, the airman re-enlists.