Say the following happened:
Two cars are involved in a fender bender in which one car was clearly at fault. It was a relatively slow-moving collision in which the cars were hardly damaged and 99% of the time, nobody would be hurt.
However, the passenger in the car that was hit has a bleeding disorder. She gets a mild bump on the head and as a result has significant bleeding in her brain. As a result, she has such severe cognitive deficits that she can never work again.
Should the person who hit her now be sued for financial responsibility for her care for the rest of her life, when it was a minor accident that would have caused no injury in the vast majority of people?