A groundhog, especially one that takes the kids out for breakfast lunch and supper, can devastate a garden in no time flat. We had this problem two years ago. My old dog, who died a couple of years ago, couldn't tolerate the sight of a groundhog. He also liked to eat them. The dog I have now doesn't usually go after them, but last year she did manage to take one out. She doesn't eat them, however. On the other hand, I have heard that a groundhog skin makes a good banjo head. Maybe the next one she gets will end up on my banjo.
Mind you, I have no problem with Punxsutawney Phil. He lives a couple hundred miles from our garden and is well fed by the people of Punxsy. It's the rest of his ill bred kin that I don't much care for.