That system works for most dogs—for not for chows chows.
They will ignore the treat and growl at the stranger.
Rumor is they guarded the loot of the Mongolian Hordes back in the old days...
It’s not so great with Dobermans, either.
They’ll ignore the ones you toss in the yard, hoping you’ll come close to the fence and ‘hand feed’ them.
Sneaky bastards.
:D
We have owned two Chows.
They were great Watch Dogs.
Otherwise they excelled in indifference.
It’s like we had two 90 Pound Cats who wouldn’t give us the time of day.
That’s when the First Class complementary Double Cheese Burger comes in to play.