I laughed so hard I snorted. Yes! I can picture it now. It started as an actual argument over something. They rarely argue, but Chris was heated over something and they happened to be in the grocery store. Emery asked him to tone it down, before drawing attention to them. From the corner of his eye, he saw the box, grabbed it and told her ‘Suck this!’ He threw it in the cart and walked off, hearing her laughter two aisles away.
They always keep boxes hidden around the house now, just to use as part of their argument strategy to diffuse heated situations.