Expulso!!" Crabbe went flying back down the hallway, a surprised yelp escaping him. Draco trained his wand on his face, advancing carefully. He took a moment to build a privacy ward around them, so that no one beyond its bounds would hear them. Crabbe moaned in pain; his arms wrapped around his middle. Draco pressed forwards slowly, his wand raised, "You never learn, do you," he said coldly, "How many times must we play this game - hmm? How many times do I have to curse you to within an inch of your life, for you to understand?"