You pour your heart into your job. You love your students, even when they’re not so lovable. You plan and create interesting lessons and deliver them with energy. So when a student complains, often within full earshot of the class, it can be infuriating. Few things get under a teacher’s skin as deeply. “Why do we have to do this?” “This is sooo boring.” “Oh no, not that again.” It can take willpower not to reply with a sharp, “Because…