The Andy Griffith Show S05 E18 The Rehabilitation of Otis

"Nip it in the bud!"

Barney's attempts at getting Otis to stop drinking through psychotherapy only succeed in driving him away to Mount Pilot. When Andy sees how bad Barney feels, he takes him up to Mount Pilot to convince Otis to come back, only to find that Otis prefers their jail over Andy's.