Indeed - after incidents like this I usually say, "This is called experience that you can't pay to get for any price. Learn from it well, and value your lesson."

Yeah, imagine if a bridge engineer said the same thing: "You aren't an engineer until your bridge collapses. Congrats!" I am starting to hate tech culture. Nobody cares about correctness and discipline. Mention "math" and everybody spreads like cockroaches.

I wrote a migration that dropped columns for a functionality that was no longer to be used.

Then the client wanted that functionality back. Oops.

Definitely, the likelihood of these things happens goes way up alongside the amount of concurrent tasks, meetings, or other forms of distraction. I’ve seen my fair share of production administration as a side task.