Robbers scared off by own gun SAN ANTONIO, April 12 (UPI) -- Police in Texas said a pair of attempted robbers were scared off when their own gun went off during the crime. Investigators said two men with their faces covered walked into the Valero Corner Store on Culebra Road in San Antonio early Thursday morning and demanded cash from the clerk, WOAI-TV, San Antonio, reported. However, the men fled empty handed when one of their guns accidentally went off. Police said there were no injuries and officers are searching for suspects.