"I knew you were a bright student, Mr. Malfoy."  Jansen smiled with a too sharp twist to his lips.  "Which is why I know I’m only going to have to say this once."  He leaned in closer to Draco, his voice dropping close to a whisper, "if you hurt Hermione, you will be hearing directly from me.  And no matter what I do to you, I advise you to remember that I have diplomatic immunity in 96 countries with both magical and muggle governments."