As the wall collapses around them, the teacher screams for help. He's a teacher, after all, and he wants to help his student escape. The teacher realizes that he's helping the teacher escape from the wall, but he doesn't know how to explain it to his students. He tells them that he was just trying to help the teacher get out of the way of the zombie. He says that it's too late to cure the teacher, but she'll be able to buy some time.