The interviewer wants to know if you prefer an environment where rules are black and white or if you feel there should be procedural wiggle room for particular situations and personalities. Many organizations find it challenging to be flexible, so this question is also an opportunity for you to learn more about the hiring company and see if it's a fit for your approach and personality. If applicable, discuss a time when you have deviated from HR policy. Talk about a situation that was justifiable and not detrimental to your company. The hiring company will want to see that if you took a risk, it was still responsible and calculated.