been battling these buggers on my back stairs for years, I have filled their holes with raid and a couple days later new ones push the dead bodies out the holes and start boring again, I have filled their holes with borax as well same deal.
A strong body makes the mind strong. As to the species of exercises, I advise the gun. While this gives moderate exercise to the body, it gives boldness, enterprise and independence to the mind. Games played with the ball, and others of that nature, are too violent for the body and stamp no character on the mind. Let your gun therefore be your constant companion of your walks.