Drones over Florida have made a swarm attack on the crowd gathered for their holiday light show.
So far the worst injured was a child with a cut upper lip, however the parents report the child will be getting heart surgery.
I expect the need for surgery was discovered during the treatment for the lip injury and was not induced by the drone. If so, getting hit by the drone may have saved the child's life.
Update - the current claim is the falling drone hit the child hard enough to leave a dent in his chest and that impact was enough to damage the heart valve. That seriously sucks for everyone involved.