carbonoid
The stuff in chocolate that makes yellow labrador retrievers yellow.
Bobo (yellow lab): Hey dad, if you don't give me that chocolate RIGHT now, I'm going to turn gray tonight from carbonoid deficiency!
Dad: Too bad. Chocolate is not for dogs.
Bobo: I'M NOT A DOG!
Dad: Too bad. Chocolate is not for dogs.
Bobo: I'M NOT A DOG!