We do the Chaos Monkey in software development all the time. I am kind of surprised no one has recognized this. Testers are supposed to find ways to break software and are generally spiffed to find issues.

Someone also mentioned the old turn off the server and see if anyone complains. We also do this with software/reports. When we upgrade if we're not sure a report is used then it's not upgraded. Now if we could just learn to document everything maybe we wouldn't need to do this. 😀

Chaos rarely reigns when we do the above, it's just painful for a little while.