We have a Sheltie or Collie/Border Collie mix at the kennel I work at right now...one of my coworkers walked up to the lady and said wow, I've never seen a black and white sheltie in person. And the lady goes "Oh, shes a purebred border collie, we have papers" real snotty like. My coworker just said oh okay and walked away...and let me tell you, this dog looked just like Bijou, just black and white, and was about as big as a sheltie.