Exactly this. We have a saying in the GxP QA world - look at the process, not the person. Anyone can make mistakes, and sometimes the naive 'why' of something

Exactly this. We have a saying in the GxP QA world - look at the process, not the person. Anyone can make mistakes, and sometimes the naive 'why' of something is just that someone made a mistake. But if you focus your questions on the process, it becomes 'why did the process allow this mistake through'. Perhaps a checklist could have helped. Perhaps you need a QC [1] step in the process. Maybe the instructions aren't detailed enough. [1] Though there are many sometimes subtle differences in how these terms are used across industries, generally the difference between Quality Control and Quality Assurance is that QC is part of the process (e.g. a built-in check in the system), while QA is a separate process making sure these checks and balances are working properly. To bring in the car analogy, QC would be your tire pressure sensors, and QA would be your mechanic checking that the pressure sensors are working correctly.