Re: Ah yes...
A very long time ago there were two main types of Civil Servant: Established and non-established. People in Established grades served at "Her Majesty Pleasure" and were normally considered very difficult to remove (except for things like "Gross moral turpitude"). After about two years I was invited to apply for Establishment and went for an interview at the Commissioners. It was one of the hardest interviews I have ever had. I passed. When I asked my boss why it was so hard, he told me that they were looking for character and not knowledge - "skills can be taught". I realized that one important set of questions that I was asked was to name Capital Cities. I thought it was OK until we got to Mongolia "Ulan Bator", I said; They asked "Inner, or Outer Mongolia?" I told them that I didn't know, but would find out - That was what they were looking for. I believe that if I had obfuscated I would have failed, and if I had known the answer, the questions would have become more obscure until we reached the same point. If anybody cares it was Outer Mongolia (or "Mongolia"), Inner Mongolia is Hohhot.
If an Established Civil Servant was "difficult" one way of dealing with it was to use "Mobile" grading. Almost all Established positions were Mobile, which mean that you could be transferred anywhere. The story was that if you had spent a winter in a hut on Muckle Roe measuring costal currents, hadn't resigned, and had learnt "a lesson" you would be transferred back...