A mysterious gentleman

When I went on my big walk Sunday morning, we saw another Sheltie! He was a very distinguished-looking gentleman with all-white front legs. Very formal. Tragically, his owner was walking him in a different direction and we couldn't catch up to say hi. (It's not my fault! My legs are short!) He was accompanied by a big fluffy golden dog. Very suspicious. Maybe he needs to be rescued! That can be my first Sheltie superhero mission. Right after I finish breakfast.