A feud of sorts breaks out between Barney and Gomer when the over-zealous Deputy gives the mechanic a ticket for making an illegal u-turn on Main street. He also gives Gomer a lecture about civic duty and the responsibilities of even private citizens to make a citizen's arrest when they see any wrongdoing. Gomer takes it all to heart and promptly arrests Barney when he makes an illegal u-turn. Quite a crowd gathers and when Andy forces Barney to write himself a ticket, the angry Deputy also writes out his resignation. He also refuses to pay the fine and insists on spending the requisite 5 days in jail. When Gomer hears what has happened, he realizes it has all gone too far he tries to get Barney back on the job.
—garykmcd