It appears that when in Rome, you should do as the Romans do on New Year’s Eve. For Roman police, that means calling in sick. The problem is that this year, the police left the city virtually undefended. Some 83.5 percent of Rome’s police scheduled to work on New Year’s Eve called in sick. Not since the sack of Rome in 410 by the Visigoths have the walls of Rome been so sparsely defended.