To get their mind wrapped around negligence, Curt Varone points firefighters and officers in the direction of something with which they already are familiar: the fire triangle and the fire ...

For a fire to exist it requires three elements to be in place Heat, Oxygen and Fuel. This is known as the Fire Triangle. The triangle shows what you need to ignite and burn a fire.

Like the fire triangle, all of the elements can coexist without issue. It is when one of those elements is manipulated that there is a possibility of a mental health injury.