She heard the heavy footsteps of his long, quick strides approaching, and she turned around to say something to him when he suddenly grabbed her by the shoulders. Instead of the sentence that she was planning on saying, out of her open mouth came a surprised squeak. Her bookbag was dropped and momentarily forgotten. His fingers dug into her upper arms so hard she wondered whether she would have bruises tomorrow. He roughly pushed her against the wall, trapping her in with his arms on either side of her head, like a cage.