Adult Sheldon: Growing up, I had an aversion to any type of group. For example, rock groups. I'll restrict my drug use to Rolaids, thank you. Group costumes. I'll tell you who really didn't have a heart: my mother, for making me wear a funnel on my head. But of all the groups I didn't like, by far the worst was...
Dr. John Sturgis: Group projects. [class groans] Yeah. You heard me.

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 Sr.: Talked to Billy.
Missy: Why would you do that?
George Sr.: 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.

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?

Meemaw: All right, come on, let's talk about something else.
June: Okay.
Dr. John Sturgis: A lot of people here like to talk about the game.
Meemaw: Really? You speak sports now?
Dr. John Sturgis: I sure do. Check this out. Hey, ref! I suggest you go back to referee school and this time pay attention in class!
Man #1: You tell him, Doc.

Mary: How about you all come work at our house?
Sam: I guess if that's our only option.
Mary: It'll be fun. I'll make food. You can even bring your laundry.
Keith: That actually would be great.
Sheldon: Now this man's soiled underpants will be in my kitchen. Thank you.

Keith: How about we work in my dorm tomorrow?
Mary: Um, I don't know if a dormitory is the right environment for someone his age.
Sheldon: If you're worried about the beer-drinking, Dad has thoroughly desensitized me.