The robbery attempt began around 8 p.m. Wednesday when one thief asked 17-year-old Tiffany Hobbins for a free cup, the New York Post reported.
"I told him, 'No, it's against corporate rules,'" Hobbins said. "Then another guy was wandering around, he asked me for a turkey and cheese sandwich. I asked him if he knew the other guy and he said no."
"When I was making the sandwich another guy with a red jacket and a black ski mask said, 'This is a robbery. Give me the cash from the register,'" she recounted.
Hobbins said at first she thought the three men were joking, but then one of the thieves tried to cut her with what she later learned was a USB port.
Then, "I started fighting back," she said.
"I started throwing stuff at them, food and the lids we have behind the counter," Hobbins said.
Hobbins said she has been working at the store since February and has no intentions of quitting after the incident.
"I'm not quitting. Why would I quit?" she said.