and it was all yellow

Ollie peed in the bath tonight. Yet you wouldn't have been able to tell. You see we bought Ollie tablets that dye the tub water and tonight he picked out yellow. As the tub water rose and the tablet plunked into the tub, mellow yellow was the color of his bath water. Gross! I know that yellow is an essential color in the color wheel, primary color and all, but I say, "No thank you!" Yellow is not an acceptable color for my young breed's bathing water.