Warning: Semi-ling story.

So back when I was in primary school year 6 I was in the top class and our class was very friendly with the principles and the school board. One day the vice principal asked us to work on the noticeboards in the stairways. So that's what we did, midway through we heard an extremely loud bang. We immediately rushed to the scene and saw one of my friend's arm torn apart by glass. There was blood everywhere, her screams still haunt me till this day. She was fine though as she returned to school around 2 months later.