The Walking Dead Season 6: 18 Easter Eggs You Probably Missed
4. Common Courtesy
Rick and Morgan have come a hell of a long way since Season 1, and indeed are the longest-running characters still going. Their characters have changed considerably since that first meeting, with Rick now a ruthless leader while Morgan refuses to kill.
In Season 6, there was a nice callback to when things were a little bit easier for the pair. During First Time Again, when it flashes back to Morgan's arrival in Alexandria, Rick asks him a question and follows it up with: "I ask, you answer. It's common courtesy, right?"
This is a direct reference to the very first episode of the series, when Rick is first waking up, and Morgan tells him: "Look, I ask, and you answer. That's common courtesy, right?"