Depending on how long someone's been in the industry it's more a question of if, not when, an outage will occur due to someone deciding to push code haphazardly.

At my first job one of my more senior team members would throw caution to the wind and deploy at 3pm or later on Fridays because he believed in shipping ASAP.

There were a couple times that those changes caused weekend incidents.

I think you meant to write “when, not if” instead of “if, not when”