[At the bookstore, while Morgan reads, Bo sips a glass of water]

It's contaminated.

Carl, there's something wrong with our water!

Your water's fine. Bo has this thing about her drinking water. She had it her whole life. It's like a tic people have, except it's not a tic.

[Mrs. Nathan looks down at Bo, who's clearly not happy with her brother's explanation]

Is that right?

[We hear someone pound a fist]

Thirteen!