Missy Cooper: Did you look at the card inside?

Sheldon Cooper: Why? That’s just other people who checked out the book.

Missy Cooper: It’s a list of losers like you who can’t find a friend.

Sheldon Cooper: So?

Missy Cooper: So they’re desperate, and you have their names.

Sheldon Cooper: That’s brilliant. Now, how is it that you can’t count?

From Young Sheldon – Season 1 Episode 2: ‘Rockets, Communists, and the Dewey Decimal System’ (1×02)