It's a scene from cartoons and comics, one person swings an object such as a baseball bat, a wooden beam or plank, and accidentally hits somebody over the head with it.
Well, it happened with a golf club recently, and the person struck was a seven year old child. The boy did not survive the incident.
The video of that girl handling a rifle sparked outrage in some, provoking comments such as "she should be doing girly stuff". Well, accidents can happen everywhere, and some sports are more dangerous than others.
Kids die in accidental shootings too, but at a far lower rate. That girl doing fire drills, she's probably safer off than the other girl in cheerleading.
Think about that.