Homer loses Santa's Little Helper because he's too busy playing Village Ville (a Bland-Name Product of Castle Ville). When Santa's Little Helper is found in the kitchen cabinet and Homer admits he doesn't care about him, Grampa tells the story of Homer's first dog, Bongo, and how he ended up missing.
- Big "NO!": The Simpsons give one upon being informed Grampa will have to live with them.
- Call-Back: Waylon Smithers Sr. from "The Blunder Years" appears in the flashback sequence.
- It Will Never Catch On: Back when he was a kid, Homer suggested inventing cup holders and his Dad scoffed at the idea.
- Metronomic Man Mashing: A flashback shows Krusty receiving this treatment from a gorilla.
- Origins Episode: The flashback sequences explain the backstories of several Springfield citizens. Lampshaded by Bart, who has a checklist on how many peoples' origins were told.
- Squick: In-Universe. Homer's virtual villagers see him putting his hand inside his pants and sound disgusted. He argues there's nothing wrong with it (to him) and it's the same hand he uses to tap on them. One of the villagers pukes in a barrel.
- Undying Loyalty: Grampa proves that Bongo never stopped loving Homer by showing him a picture of an older Bongo sleeping on the Itchy & Scratchy sweater he gave to him.
- Unreliable Narrator: After Abe is done telling his story, an angry Homer tries to tell them the "true" version of the story. It's far darker and more unconventional than his dad's. Only the part when he snuck out to see Bongo with his aunt is true.