Or sometimes there are just multiple failures. That's what I learned from reading Admiral Cloudberg about air disasters: even if you have n safety measures, there's still the chance that there'll be n+1 failures.

So we called this meeting to discuss a change in procedures. HR would like us to remind you that this is entirely unrelated to last week. Also has anyone seen Joe? We'd like him to be here for this. No reason why.

I mostly mean proof what I've written prior to having someone else test. I often will comment out lines when trying different things so I just make sure I clean up what I've done. We have a few human checks as well as some automated checks between each stage of deployment for each environment.