So Colby doesn't react, she just moves away or something?
I tend to agree with you. BCs will herd other dogs, which might be part of it, or he wants to play with Colby, but Colby won't respond, so he keeps trying. The only thing I would be worried about is him developing the idea that it's okay to solicit play by jumping on another dog. Kabota loves other dogs and is very tolerant of other dogs, but I think even he would get a bit snappy about that.
I tend to agree with you. BCs will herd other dogs, which might be part of it, or he wants to play with Colby, but Colby won't respond, so he keeps trying. The only thing I would be worried about is him developing the idea that it's okay to solicit play by jumping on another dog. Kabota loves other dogs and is very tolerant of other dogs, but I think even he would get a bit snappy about that.