Welcome. The rather tall mongoose lady says, standing by the whiteboard. I am Professor Mongal, your teacher for this class. Please pay attention, as I don't take kindly to interruptions. With that she pulls out a book, taking roll call. When she's done she writes a single word on the board. Predation. That is what I'm here to teach, so if any of you prefer to be prey, please come forward so I may use you as demonstration. Better you make yourself useful than be devoured where no one learns anything. She waits to see if anyone comes forward, her gaze sweeping the room.