I have a dog like that from a litter of five mismatched pups. Noone can believe they were womb mates. I get such a kick out of her as she looks like a windup toy when she runs. Sometimes she looks like a a big white fluffy mop. We call her Snowball, and she is NEVER white like Lucky, as she runs at the sight of a brush.
She gets really dirty every day, but somehow is clean by nightfall. She runs with her taller spindly legged black sister, who helps her get clean every day.
Lucky is lucky. And this breed seems to have a loving personality.