Accident investigation is a common phrase in industrial safety and health. But what does it mean? It's a basic job requirement for safety pros, and they attend professional development workshops to improve their skills in this area. But, really, what's your assignment when investigating an accident? Let's just look at the language we are using.
The word 'accident' implies 'a chance occurrence' outside your immediate control. When a child has an 'accident' in his pants, we presume he was not in control. He couldn't help it.