your dog’s leash!
TheYellowDogProject is a Canadian initiative to bring awareness to, basically, “Not all dogs want to be approached when they are on leash.” The yellow ribbon on your dog’s leash is a warning that this is a dog that needs some space. Back.off. Of course, there will always be people that approach, but maybe this might keep a few of them away.
When I was training Roxy for the Therapy Dog test, I would take her out for a walk. The rules were simple. If she sat, she would get petted by strangers. I would explain this to people, and still there were still people who wouldn’t listen. “Oh, dogs love me. It’s OK if she jumps on me.” If Roxy had a nickel for every time this happened, she would be able to buy that diamond studded collar she’s been looking at.