In a grim suburb outside Pristina, two schools exist in the same building. They are only one floor apart, yet the pupils speak different languages, learn different histories and their break times are staggered so that they never interact. If there is any hope of rebuilding the traumatised relationship between the majority Albanians and Serb minority in this war-torn country, it is unlikely to come from the classrooms at Daut Bogujevci.