That's how we know not to do it anymore

Knowledge tells you it's safe to push to prod in Fridays. Wisdom tells you not to. Experience raises your heart rate at the very thought (though, that might actually be ptsd)

My favorite personal fuck up was when I accidentally locked myself (and literally everyone else in the company) out of the CRM I was working on by disabling the login pages and enabling SSO before I had finished setting up the SSO inside the CRM's config, and it logged me out as part of the procedure. Whoops.

I think most people have done, or been part of a team that did, something similar.

At least most of the engineers I've worked with have had similar stories from their past

Triple points if you're going on a month-long holiday.

And CD is for Commit Disaster

Ah, a true chaos wizard, I see.