HIT.

You.

You are in the bathroom at the local mall. As you are entering you see a mother take her child into the stall furthest away from the door.  You claim the stall next to them. Next you hear the mother hitting the child, but you can obviously not see it happening. You wash your hands and the mother and her child also come to the sink to wash their hands. There are so signs of physical abuse on the child besides the redness under the eyes from crying.  Is it any of your business to tell someone that the child had been hit? Was there a good reason for this "spanking"? Do you ignore what you heard because you can not prove what you thought was the situation? Or do you brush it off because you also have been spanked in a bathroom stall?