Ivaylo Dinev, a 24-year-old anthropology student, is an informal leader of the group that has occupied Sofia University’s main building and he believes the time has come to change his world. To do so, he’s chosen a tactic straight from the 1960s — the sit-in. Since the end of October, a few hundred young men and women have barricaded themselves in what they call the “free territory of the students”, in hopes of forcing Bulgaria’s Socialist-led government to resign. “We want morality in politics, we want our politicians to work for the people and not for the Mafia,” Dinev said. “That is the main reason we want the government to resign.” Bulgaria has struggled for decades against corruption.