I would never do this, reason, the dog learns to take treats from strangers (I know everything my dog consumes and where it came from), to me that is NOT a good thing, Lazy owner no wanting to socialize their dog, having others do it for them.
I would never do this, reason, the dog learns to take treats from strangers (I know everything my dog consumes and where it came from), to me that is NOT a good thing, Lazy owner no wanting to socialize their dog, having others do it for them.