A neighbor of mine has a pitbull and a chain link fenced yard. The pitbull is nice, does'nt bark, etc. It is a very nice Pitbull. BUT..................... Most of the neighbors that live around the people with the dog are mad because the dog keeps digging under the fence, going into their yards and digging in their yards, flower beds, etc. After a couple times of the dog doing this, the owners just let him roam the neighborhood and have done nothing to try to keep the dog inside their own yard. I suppose they gave up! How do you keep a dog that likes to dig, inside a chain link fence? Any commercial product available? I heard one way was to bury some type of fencing close to the fence so that when the dog reached it, it could dig no further. Or perhaps use an invisible dog fence (w/electric collar) set to the same size as the back yard?