There are many mini-luxuries to be found in airport departure lounges, from massage chairs to shoe-shine services. We don't think this small shoe-shine business has ever had customers like this before.
Apparently, the two people dressed as Cybermen from 'Doctor Who' were in town for a Comic-Con convention, and thought this would make a great photo opportunity. They were right! If they'd paid a little more, they could probably have got their whole bodies done. At least they didn't 'delete' the workers.