Maybe when you ran your experiment you realized that you completely broke your application.
Is this acceptable for your customers?
No
Did you press the halt button?
Was this expected?
No? Great, you’ve found a weakness before it became an outage! Chaos Engineering uncovers unknown side effects.
Was this detected?
No? Awesome, there’s a great opportunity to improve monitoring and bring down that MTTD. Ensuring that our monitoring is configured correctly is critical.
Was it mitigated?
It sure feels a lot more comfortable working on resolving an issue knowing that your users can still access your service! When possible our systems should gracefully degrade.