You're walking through the school foyer, your mind already on physics class. You're not thinking anything of it when someone trips you from behind. You stumble, fall, and lose your glasses/contact lenses.

As you fumble around on the floor, you vaguely perceive a dark shadow flitting past and catch a whiff of heavy, feminine perfume.

You've already touched your glasses/contact lenses with your fingertips, but before you can properly grasp them, you feel a strong, hard pressure on the back of your hand, pinning it to the floor. You don't really grasp what's happening; you only see the dark shadow in front of you. Then the pressure on the back of your hand intensifies, and a moment later you hear an awful crunching sound...