Mutually assured destruction.

“Librarians are hot. They have knowledge and power over their domain...It is no …”

“Startled, he loosed his grasp and she pulled free. He clutched her arm, but she…”

“But there's nothing you like better than when it hurts a little, is there?" Luc…”

“You sure you want to cross me?"In that moment she's her father's daughter.”