The question is how do we do that in a way that is good enough to get engagement without actually endangering anyone. Imagine the uproar when one of these chaos

The question is how do we do that in a way that is good enough to get engagement without actually endangering anyone. Imagine the uproar when one of these chaos monkeys cause a crash because the driver didn't react in time and it's evaluation of 'safe but seemingly dangerous' was just a bit off. For other systems this is easy because the system and the response are both totally contained inside the software so fake events are easy to generate and the user responds back through the system so the response can be caught and evaluated.