<今日の進捗>
Book 9 - 70 (Why do abused children often succumb to threats and keep quiet?)

<オリジナル回答>
If you were on the phone talking to your boss, and all of a sudden they hung up on you, what would you think?
If I were on the phone talking to my boss, and all of a sudden they hung up on me, I would think he ran out of the battery.