the apple, a boy, and a good arm

So at my old school, me and my friend were just finishing lunch. My friend forgot to throw away her apple. She took a bite out of it and said that she was full. So she asked me what to do with it. I told her she should throw it in the trash. She agreed. So we made a bet that she couldn't make it into the trash can or not. I voted she couldn't. I was right. There was a guy standing right next to the trash minding his own business when my friend chucks the apple at the trash and it hits in a spot that hurts. DANG it looked painful!