I heard this on Thinking Allowed and thought how applicable it was to the attitudes that you can sometimes encounter in both systems development, and the support of production systems: “Each uneventful day that passes reinforces a steadily growing false sense of confidence that everything is all right – that I, we, my group must be OK because the way we did things today resulted in no adverse consequences.” by Scott Snook (Senior Lecturer in the Organizational Behavior unit at Harvard Business School )