Hi Teresa, I added Stephen Bauman's portrait class to my classroom. I haven't purchased it, but it is now in my "Courses" tab under "My Classroom". In it are a few free videos and the rest are locked, waiting to be purchased. When I hit "Remove from Classroom", the course is no longer listed under my "Courses". You can go back to "Browse" and add them right back to "My Classroom". I have purchased Cornelia Hernes' painting course and just hit "Remove from Classroom". It was no longer under my "Courses", however I could find the painting course under the "Browse" section and add it right back to "My Classroom". It seems as though no one can do any damage by accidentally removing a class.