It's a way to filter out the really 'out there' people. Say your example of a disagreement with your manager. You may have all kinds of reasonable points. Th

It's a way to filter out the really 'out there' people. Say your example of a disagreement with your manager. You may have all kinds of reasonable points. The next guy could come back with 'I slashed his tires' or 'I decided to call out for a week'. Clearly, the second guy should be throwing up red flags. However, it can be hard to uncover that type of thing if you were to only ask technical questions.