On a cold and dark Wednesday evening, Toni Comín walks through the corridors of the European Parliament in Brussels like someone who feels at home. People greet him warmly, like someone they don’t see often – a strange situation for a member of the Parliament. Except that Comín is an MEP only on paper. He has no office, no assistants, no tasks to perform, and of course, no payslip. Even the badge he uses to…