Mary: Hey, have you noticed anything off with Sheldon?
George Sr.: Uh, no, no, no. Can't say that I have. Why?
Mary: He's been awful quiet, and, at the risk of being indelicate, he's gone several days without a bowel movement.
George Sr.: How do you know that?
Mary: Well, I was worried about him, so I took a look in his potty journal.
George Sr.: He's still keeping that thing, huh?
Mary: Oh, yeah, that's why he wanted the Polaroid camera.

Sheldon: Regardless, I'm not interested in making any more friends.
Mary: Oh, I don't think that's how you really feel.
Sheldon: It is. From now on, it's a hermit's life for me.
Mary: I bet, when you grow up, you will be surrounded by lots of smart, wonderful friends.
Sheldon: I can't see that happening.

Sheldon: Mom, when should I be expecting my testicles?
Woman: [turns around] What is wrong with him?
Mary: Nothing is wrong with him. Now turn around before I knock your lights out.
Sheldon: Hello.

Mary: Sheldon Lee Cooper, if you don't finish that pork chop, I swear I will chew it up and spit it in your mouth like a mama bird.
Missy: Do it, Mom. Do it.

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?

George Jr.: Mornin'.
Mary: Mornin'.
George Jr.: I slept in the nude last night. Felt every little breeze.
[Sheldon slides his food away]
Mary: Thank you for sharing that.
George Jr.: You're welcome.

George Sr.: Sheldon, all you got to do is be cool.
Adult Sheldon: "Be cool." He might as well have asked me to fly around the backyard.