One of the boys on the Institute Service Committee, Mike, was involved in making a video ad for an upcoming temple trip to be shown during institute announcements at the beginning of class. I had some free time when it was being made, so I watched them film and helped out. My part was to throw a basketball at Mike's head from offscreen. The first several times I would automatically throw to about chest level for him. I didn't mean to - I just was used to throwing balls where they could be caught. Or something. So we practiced a few times with Mike putting his hands up by his head. After that, I was able to hit him directly on the forehead.