So I tried to manipulate the ending somehow and it always went for a while and not for a while. I felt the class begin to have fun. What were they supposed to do when I wasn't paying attention to them and playing with a PC there, I thought, so we'll probably spend the rest of the hour like this. But no, in the end one of the students came to help me and the video finally started.
What should they do if I didn't pay attention to them and play with a PC there?