From my coca-cola employee manual: "Please be aware that it is considered inappropriate and unacceptable to purchase and/or consume products produced or sold by our competitors during comapny time, while on company property, or while in company vehicles. Examples of such products obviously include competitor's soft drinks, but also include products of competitvely owned companies. We expect everyone to use common sense when making their choices in purchasing products and hope that your selections while off company time will also exclude competitor's products."