On the porch after supper, Barney repeatedly says he's going to go home, take a nap, then go to Thelma Lou's to watch some TV. When the aggravated, impatient Mr. Tucker urges Barney to go ahead, Barney leaves. Yet, later in the evening, Barney's on the porch again singing with Andy before they go to get a bottle of pop.
The telephone is tied up all afternoon by the Mendlebright sisters, yet Gomer is able to call the courthouse.
Barney is known for his inability to sing, but on Andy's porch, he and Andy sing a very good version of "The Church In The Wildwood". Even Mr. Tucker quietly joins in.
Gomer knows nothing of fixing the man's engine, only "gas and air". But in a later episode (and not much later), when Gomer stays at Andy's house, there is a constant parade of people coming by at all hours for Gomer to fix their vehicles.
The character, Wally, has much more of a New England accent than a Southern accent although the show takes place in North Carolina.