The Importance of a Thick Skin in Civil Service

I said that if you've got particularly activist civil servants, who either because they're overly unionised or just don't agree with what we're trying to pursue. If actually they can block reforms or changes through a rather passive-aggressive approach, we can't deliver for the British people. I'm afraid that makes it very difficult to deliver and is not what you'd see in most walks of professional life. How do you reflect in conclusion on all of this about your own behaviour, about how you're perceived by some? Do you say sorry to them?