We may jest, but Gym Shortts did slither in to reviewing Cabinet Office security about 11 years ago and was seen, preposterously dressed & carrying a knobkerry, entering the Cabinet Office on Whitehall. Strangely, this managed to get its way into Private Eye, and he and his mate (Robin Weir?) were sacked. It is a mark of his dangerous Waltery that he could be invited there - and evidence of systemic security concerns that he was. Separately, I raised this with my MP at the time, expressing concerns that a fantacist managed to get in to such a secure location (be assured, the Cabinet Office is an extremely sensitive location). But given the number of MPs there, I suppose no one noticed.