Another Brief Lesson in Marriage

On the train ride up to Burlingame Friday, the following conversation took place:

O: Mom? Will they arrest you if you marry someone from your family?
E: No. They won't arrest you, but it's against the law.
O: If it's against the law, why won't they arrest me?
E: Because some things are against the law, but the police don't get involved.
O: They won't arrest me?
E: Why? Is there somebody in the family you want to marry?
O: Yes. Marshall.
E: You can't marry Marshall.
O: When he grows up?
E: No. Not when he grows up.
O: But why can't I marry Marshall?
C: I want to move to another country so I can marry Owen.
E: Why do you have to move to another country?
C: Because they won't let you marry boys in this country.
O: I want to marry Elise!