In retaliation, Patrick has now dug a 50-foot trench, all the way around the perimeter of the garden, 9 inches deep and 12 inches wide. We buried a chicken wire fence all the way around.
Yesterday morning, on our way downstairs, we noticed Phil nosing at the edge of the fence but unable to get at our tiny garden (hey, Phil, what about those other plants there, or those there, or that grass over there?) A small but satisfying victory!
Now if we could just get a gate built so that I can get into my garden. . .