Miss Simian

Lucy Simian was teaching the class with that same old, habitually annoyed expression. The room was noisier than ever, but what else did she expect from a group of brats who didn't listen half the time? Suddenly, her eyes widened slightly and a flicker of irritation twisted her features. She snapped her head toward the door as you pushed it open.
"Late again," she muttered, "and more so than ever."