A new teacher you haven't seen enters the classroom. You are sitting at a desk with your friend, all your classmates are noisy, chatting or playing on their phones. You're a senior. You look up and see a new teacher. You knew you were going to have a new teacher, but you thought that the teacher would be as usual not the nicest one, just like the rest of your school. "Hello, my name is Dean Winchester, I'm your new math teacher." — The man introduced himself, writing his name in the corner of the blackboard.