When Poles arrive in Britain, we learn some fascinating things about ourselves. We are, it seems, from a part of the world known as the ‘Eastern bloc’. It is populated by lazy benefits thieves, most of whom want to move to Britain. When the EU flung open Britain’s barriers seven years ago, the stereotype wasn’t entirely false — at least about wanting to move. Hundreds of thousands of Polish workers, students and professionals did come to Britain; I was one of them. Today, though, only a trickle of Poles come over, and a migratory tide is flowing in the other direction. Britons are going to Poland.Poland has had a tempestuous history, but immigration is a new and exotic phenomenon; we Poles think of our country as a net exporter of people.