In certain instances, a person has a responsibility to protect other people. This is known as the duty of care. All drivers of cars and motorcycles have a duty to care for the well-being of other drivers and pedestrians. In this example, duty is clearly present. A breach of duty occurs when a person takes an action, or fails to take an action, that constitutes a failure of the duty of care. In the example, if the driver of the car failed to properly check their blind spots before changing lanes and causing a collision, a breach of the duty of care may have occurred. This is the element of negligence most often contested in motorcycle accident cases.