Adult Sheldon: I was so wrapped up in my game I didn't even know where Tam went.
Tam: [sings along with TV] ♪ The things you say ♪ ♪ Mm, you're unbelievable, oh... ♪
Adult Sheldon: But I didn't care, because I was building my locomotive empire. Little did I know, as I was spreading tracks across North America, a computer virus was spreading itself across my hard drive. Next stop: Infection City.
♪ You're unbelievable... ♪

Adult Sheldon: I didn't realize until years later that my father was only asking questions about lightning and thunder to cheer me up. In fact, he would often pretend to be dumb just to make me feel better.

Adult Sheldon: My father didn't always get the credit he deserved. The advice he gave me actually worked out pretty well. Of course, I never told him.
George: Talked to Billy.
Missy: Why would you do that?
George: No, it was good.
Missy: Stay out of my life.
Adult Sheldon: He may not have been the world's greatest dad. But maybe we weren't the world's greatest kids.

Pastor Jeff: Before our final prayer, would anyone else like to say a few words?
Mary: Missy? [Missy shakes her head] Shelly?
[Sheldon stands up and walks up to the microphone]
Sheldon: I've been thinking a lot about the last moments I had with my dad. It was morning, and he was leaving for work. He said, "See y'all later." And I said nothing. I regret that. I could have said "bye" or asked him for a ride. Or told him that I loved him. But I didn't. I barely noticed he left. So many times that I didn't notice my father. I hope he knew how much I loved him.
Adult Sheldon: I wish I could tell you I said all those things. But I didn't.
Mary: Shelly? [Sheldon shakes his head] [Mary shakes her head to Pastor Jeff]
Pastor Jeff: Let's bow our heads in prayer.
All: Our Father, who is in heaven, hallowed be Your name...
Adult Sheldon: For a long time, I focused on my father's shortcomings. Now that I'm his age and have kids of my own, I realize he was just a person doing the best he could, and he did a lot. I didn't say it at his funeral, but I can say it now. I loved my father. I will miss him forever.

Adult Sheldon: Like a virus, heartbreak can also spread. Once it does, it's hard to contain. In some cases you can try to reboot and start over. But it makes you appreciate those early days, when your hard drive was clean... and the world was full of possibility.

Meemaw: So how come it's taken us so long to hang out?
Brenda Sparks: Well... my husband never left me before.
Meemaw: We can joke about it? Good. 'Cause that's gonna make this night way easier.

Mary: So, then, was there no big blowup when he left?
Brenda Sparks: Not really.
Mary: Well, what happened?
Brenda Sparks: Let's see... We used to be happy. Little by little, we weren't. Then there was bickering, then there was silence, and then... it was over.
Mary: I mean... all couples bicker, right?
Meemaw: You worried about you and George?
Mary: Of course.
Brenda Sparks: I'm sure you guys will be fine.
Meemaw: And if it doesn't work out, I'd be happy to introduce you to Butt Crack Bob over here. [laughs]