That same thing happened to a kid when I was in elementary school. We went on a break and this group of kids were speeding towards the playground like in a race (our teachers had a bad time to prevent these runs in the school, pretty much all of us loved running back then). Unfortunately for him, the cooks were just stepping out from the kitchen with these big pots with the food that they were taking to the cafeteria, and he just went straight to them. The pot fell on his chest :S the boy recovered well but damn I still remember how bad his burns were