For the briefest moment, Snape froze, before he relaxed back smoothly into his seat, "Well," he said at length, his voice barely above a whisper, "I’m sure you don’t need me to tell you, that you are a fool. You have gained yourself an enemy – an enemy in a woman who has the potential to be extremely dangerous too you. And so, to discourage you from further antagonising her, I will say this," he leant forward, slapping Umbridge’s note down on his desk, "if you don’t keep your nose clean for the rest of this term, then I will ensure that you and Potter are separated in my class for the rest of your school career," Draco’s lips pressed together tightly, "and   any other classes you share,   and   I will make sure you are banned from sitting at the Gryffindor table at meals," he sneered, "You clearly care too much for the boy if you are behaving as recklessly as this over him. You are a Slytherin -   act   like one!"