[Khurlxgq]

They are a complete waste of money and provide nothing more than a pathetic false sense of security.

Most dogs can run through them with no problem as the shock is so quick as they bolt across. Not to mention that when a dog choses to bolt, it has it's eyes on something it wants (squirrel, cat, ball, etc.) and it barely notices the shock.

In addition, the fense does absolutely nothing to keep other animals or people out thus your pup can easily get attacked by something or someone can just walk right up, pick him up, and walk off with him.