Mary: What?
Brenda Sparks: I'm not leaving until we talk this out.
Adult Sheldon: My mom's upset. Did you get it? Listen. [dramatic music plays]

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: Visiting Tam's house for the first time was an emotional roller coaster.
For example, it's traditional in Vietnamese homes to have gruesome religious iconography near the entrance. I did not like that.
However, it's also customary to not wear shoes around the house for sanitary reasons. I did like that.
Interestingly, one of the main ingredients in Vietnamese cooking is an extremely pungent condiment known as fish sauce. I did not like that.
But before every meal, it's common for everyone to wash their hands and face. I did like that.
Forks are not customary in a Vietnamese household. I did not like that.
And instead of napkins, there was one towel for everyone to share at the table. Seriously, what are they thinking?

Adult Sheldon: I've fought many digital battles in my life, but none are as memorable as this first one with my Meemaw. By handing me the controller, she was telling me she believed in me. That inside my small, fragile frame beat the heart of a hero.

George Jr.: [sings] ♪ The stars at night ♪ ♪ Are big and bright ♪ [claps four times] ♪ Deep in the heart of Texas ♪ ♪ The prairie sky ♪ ♪ Is wide and high ♪ [Georgie and Meemaw clap four times] ♪ Deep in the heart of Texas. ♪ Remember, it's always four claps. Never three, always four.
Meemaw: You know who claps three times? Yankees.
George Jr.: And as Texans, we always remember the Alamo.
Meemaw: Otherwise, we might as well just live in Oklahoma. Blech.

Sheldon: While Dad's gone, I'm the man of the house, and the man of the house has to enforce the rules.
Missy: The man of the house is about to get his teeth knocked out.
Sheldon: Puberty's made you mean.
Missy: I need to know what happened on my show.
Sheldon: And you'll find out when your privileges are restored.
Missy: I can't wait that long, each episode builds on the last. Imagine a Star Trek that ends with "to be continued," and you don't get to continue.
Sheldon: That would never happen, because I follow the rules.
Missy: You are this close to a purple nurple.
Sheldon: [covers nipples] You leave my nurples alone.

Sheldon: I know a way for you to watch whatever you want.
Missy: How?
Sheldon: Your imagination.
Missy: That's stupid.
Sheldon: Did you know there's a German folk song about it?
Missy: Don't.
Sheldon: [sings] ♪ My thoughts will not cater ♪ ♪ To duke or dictator ♪ ♪ No man can deny ♪ ♪ Die gedanken sind frei. ♪ [talks] Where are you going?
Missy: Mom said no music.
Sheldon: [hums melody]