Question: The neighborhood feline has made our yard his personal litter box. We have to remove kitty poop almost every day and have unsuccessfully tried spraying the affected areas with a mixture of water and bleach to deter the fellow. Do you have any suggestions ? H. Wong of Contra Costa Answer: Whether it’s neighborhood dogs leaving landmines for your walking pleasure or cats graffittiing your house with their pungent yellow perfume, other people’s pets-and their owners who fail to manage them responsibly-can be annoying. Often it starts as a minor irritation—an occasional cleanup in your rose garden or a