Accident refers to a situation that violates legal obligations or causes damage to a person not caused by the fault of the party. Which of the following are not accidents. ['A driver was driving a Santana sedan normally. Suddenly a pedestrian crossed the road, the driver could not avoid it, and the pedestrian was injured.', 'A migrant worker at a construction site descended from the fifteenth floor and accidentally slipped, resulting in a femoral fracture.', "The waitress in a supermarket who is responsible for the storage of the customer's goods, accidentally lost the handbags she gave to her.", 'A parrot breeder at a zoo, one day found a parrot sick, and she diagnosed it in time. At that time, the condition was mild, but the next morning she found that only the parrot died.']