I'm giving a physics exam to the pre-meds at the university right now. I allow students to listen to headphones, if they let me hear what they are listening to. I cannot tell you how much Christian crap I've had to listen to as a result. One person has walked out, writing only that their time could be better spent elsewhere. If I took a picture of the class right now, you'd see one chick totally ready to burst into tears. Do I write a good exam or what?