An armed robber fled after a cashier in a betting shop pulled off his mask and slapped him round the face. Ana Zuric, 47, unfazed by the robber's gun, told him: "Don't be such a silly boy." The robber had demanded he hand over the day's takings at the betting shop in the Croatian capital Zagreb. But he fled empty handed after she pulled off his mask and slapped him across the face, local media reported. "I told him not to be such a silly boy," Zuric said. Police are still searching for the man, believed to be in his 20s.