A pet training method embodying a lawn accessory device for preventing pets from urinating and defecating on lawns is provided. The device has a reflective body providing a cavity for retaining salt water. The body includes a base with a plurality of legs for maintaining an upright orientation of the device even on a supporting surface have lawn growth. When placed in such lawn growth, the reflective properties of the container filled with water within its cavity discourages dogs and other pets from entering the surrounding area.