I think I have finally trained the ones I was having trouble with. By stopping and chasing them back into their yard with my belt. They seem to be no longer interested when I come by on my bike anymore.

I have no faith in human perfectability. I think that human exertion will have no appreciable effect upon humanity. Man is now only more active - not more happy - nor more wise, than he was 6000 years ago. Edgar Allan Poe