An Arby's Restaurant in Dayton, Ohio, has fired its assistant general manager after she had to jump through the store's drive-through window to escape a knife-wielding robber. What's Arby's beef? Archer, the company says, violated a company rule. According to the Dayton Daily News, assistant manager Mary Archer had been closing up the store when the incident occurred. In an exclusive interview with News Center 7 of Dayton, she said her last co-worker had just left for the night when she heard the doorbell ring.Thinking it was her co-worker returning to pick up something she'd forgotten, Archer unlocked the door, only to find herself confronted by a robber with a knife who repeatedly shouted, "Give me the money."