:)
I had some instructors walk into class and say that, and I will tell you that it is demoralizing from a student's perspective. I also had instructors tell us straight up, "Only one or two of you will make an 'A,'" or "The final grades in here will reflect a bell curve."
As an educator, I avoid telling students anything like that. I am a believer in rewarding achievement and not just "giving out good grades" to be a peacemaker. However, I am also a believer that someone should have a fair opportunity to earn the grade he or she chooses. Of course, everyone will not make an "A" or "B," but I emphasize to the students that they can if they apply themselves.
I really liked what this module said about not assuming that "well, they're adults" and that mentality. Many of my adult students are not accustomed to adding the burden of schoolwork along with their home and occupational commitments. It takes them a while to get their "feet wet," too, and they deserve a measure of understanding in undertaking what is a very frightening prospect to many of them.