Prince Philip was in a car accident but wasn't hurt
https://edition-m.cnn.com/2019/01/17/uk/duke-of-edinburgh-car-accident-gbr-intl/index.html?r=https%3A%2F%2Fedition.cnn.com%2F
It's important for us to think about fail safe. It means the system that we won't be involved in serious accident, even if we make a mistake.
In this case, the driver caused car crashing accident. That's what he failed. But, as a result, no one was hurted in the accident. In other words, it avoided serious accident.
It's owing to durability of the vehicle, Though I don't know whether those who designed this know the concept of 'fail safe'
