Could be something as simple as a missed hyphen in Jim’s post. ‘Archaeology-tour guide’ puts a completely different complexion on those three words. A guide for an archaeology-tour doesn’t need to be an archaeologist any more than a guide for a Westminster-Abbey tour needs to be a member of the clergy, or a guide for a Windsor Castle-tour needs to be a member of the royal family.

But, of course, Nitpicking Nigel knows this perfectly well. His comments are nothing more than a red-herring, the typical diversion-tactics of the Right, although he’ll never have the honesty, or the cojones to admit it.