Guelph Police are calling hot coffee a weapon after an 18-year-old woman threw the beverage at another customer inside a McDonald's restaurant in Guelph on Thursday. 

Police were at the McDonald's on Gordon Street around 12:58 p.m. when a fight broke out between two women. Officers separated them, but before they could, the 18-year-old woman allegedly threw a coffee she had just purchased at the other. 

Shirley-Anne Hack has been charged with assault with a weapon. She will appear in a Guelph court on Mar. 1.