David Bolton, surface mines manager for UK Coal, said the disruption caused by the protest had halted work for three hours, costing the company "thousands of pounds".

BBC: Protester charged after Wrekin mine disruption

Below the surface, the skills are closer to those of a manager than a servant: for an (unnamed) Russian oligarch, Mr Seddon-Holland managed properties on several continents and organised 60 permanent staff.

ECONOMIST: Butlers

"These other partners are still thinking through how to integrate Surface into their businesses, " says Kyle Warnick, a senior marketing communications manager for Microsoft.

FORBES: Surface Surfaces At AT&T