I&#x27;ve been in dev shops where, when a NULL turned up in a database column where it wasn&#x27;t expected, the site was rolled back to a previous version, people were called in on the weekend, and a group of engineers spent hours trying to figure out why that NULL got there and how to stop it from happening again. It&#x27;s not like a DBA couldn&#x27;t have just run a quick UPDATE query to clean up the null in a matter of seconds...<p>I see this as indicative that debugging production issues happens in non software engineering contexts as well, in spite of the fact that we&#x27;re always told that their processes and procedures are so much more mature and robust than ours.