I'm glad, I'm not the only one who gets extremely annoyed with these people. I agree with you BG, the professors need to tell these people to keep their mouths closed. I've also encountered the people who love trying to start debates 3 mins before class is supposed to end. If I'm interested in the topic being brought up, I'm annoyed because we can only discuss it for 3 mins. More than likely though, I get annoyed because I'm ready to leave.