I was in a moving train car with my mother as we waited for food to be prepared. I wandered to the other end of the car when someone placed a large metal cylinder on a machine tool. Moments later the drill bit punctured the surface of what appeared to be a large battery and a hissing sound came out. I started to feel a dull pressure building up in my ears as I told my mother to get away from the machine. I feared it may have been too late.