Georgia officials are investigating a robbery that used coffee as a weapon. Officials in Lithonia say a woman dumped hot coffee on an armored guard earlier this week in Lithonia and made off with a bag of money. The guard was servicing an ATM inside of a convenience store on Labor Day when the coffee attack took place. The female guard suffered minor burns but is expected to be okay. The robber was wearing a white construction hat and her image was captured on a security camera.