It sounds as if Piano Man may come from the Czech Republic:
bq. The behaviour of the unidentified stranger, who is in a secure unit in north Kent, has left health professionals flummoxed. All attempts to coax him into communication, including the use of interpreters from Poland, Lithuania and Latvia – but not the Czech Republic – have failed. He cowers when approached by strangers and is constantly anxious.
What I wonder is why did they try Poland, Lithuania and Latvia? Or did they try whoever they had at hand in North Kent? Or did they try many, and are just naming the East European ones?