On 29 feb friday, my friends and I were doing a project in the national likbrary.I slack like siao only let my friends do it. As they did not want me to help them I helped another group of friends. In the end one of my friends had to go and we were just discussing then suddenly, a banglah librarian scolded us for talking. We already kept our volume down but he still scold. We angry finsh our project and walk out of the library.