I think it's interesting when I watch classes, that that happens also by the way a teacher responds to student comments. It's really interesting to watch a class and have a student comment and it almost be dismissed. And the student no longer feels like their contribution is needed or appreciated. Compared to a teacher who really confirms and appreciates students and what they're doing to participate and to help in the class. And it really lifts the class and encourages more participation and unity, just by the way the teacher responds to the student. Surely, and at a minimum, a teacher should always say thank you or acknowledge that someone has spoken.