[OwnedByJezebel]

I have my dog's names on their tags. I wouldn't worry about a thief knowing their name and trying to use it to call the dog to try and prove the dog is theirs.

If your dog was missing or stolen, and both the thief and you were to call the dog by name to "prove" who the dog belonged to, wouldn't you think your dog would be so excited and thrilled to see you again that it would go to you instead of the thief? It would probably run to you before you even called it's name.