After a quick googling I found this explanation of wolf-fence debugging: http://coreygoldberg.blogspot.com/2008/12/wolf-fence-debugging.html http://coreygoldbe

After a quick googling I found this explanation of wolf-fence debugging: http://coreygoldberg.blogspot.com/2008/12/wolf-fence-debugging.html http://coreygoldberg.blogspot.com/2008/12/wolf-fence-debuggi... It stipulates that the state of Alaska has got exactly one wolf, so you build a fence across the middle of the state to find on which side wolf would howl, then subdivide the problem, etc... I'm assuming in your case the wolf got replace with a lion and Alaska with South Africa.