Corey digs out of the yard, but only to follow his ball. He's ball crazy. I've tried fixing the fence by digging a ditch and placing wire mesh into and attaching it to the fence. But I ran into a problem we have two pine trees in the back and I can't get through some of the roots in order to put the mesh in place. I was wondering if anyone else has come across a solution to this. I would really like to give him back his ball especially since I'm going back to school and he'll be home alone during the day.