I've finished teaching the required for the semester but I still have some classes left, so today I just had some little fun activities for the students to do. I brought a ball with me to class to keep myself occupied (throwing it up in the air and whatnot), and one of the students started throwing it around with me. We went to opposite sides of the classroom and started throwing it really fast to see if we could catch it or not, and I threw one with some smoke on it and it hit some girl in the head. I really don't have very good control. She didn't look too impressed either.