That reminds me of the Worst Case Scenario Daily Survival Calendar I bought myself for Christmas. Some of the days, it has a "which is your worst case?" question with no definitive answer.
For Wednesday, January 24:
Which is your worst case?
Being in a car with no brakes
- or -
being on a runaway train?
Be aware:
* You can't move to a safer crash position before impact in a car.
* You can't steer the train.
* If you pull too hard on the car's hand brake, you can put the vehicle into a spin.
* If you apply the brakes on a train, there is the possibility of derailment.