What would you do if a child having a tantrum started tearing apart the store you were shopping in? Would your first instinct be to grab a camera, or grab the child, or mind your own business?
He looks about 10 years old -- that's big enough to throw a punch. Only a large, strong man seems courageous enough to grab the child and take him outside. What would you do? Of course your first reaction is, "Where are his parents?" But failure in parenting is what brought him to this state in the first place. With that recognized, do you blame the child for his actions? Is he just acting out on feelings he doesn't know how to handle? There may be a storm going on inside his mind we don't understand -- and might sympathize with if we did.