This is so sad.  Why on earth would you not want your dog to bark?  Barking is their way of communicating their needs...Chewy barks when his bowl is empty, when he gets locked in the bathroom, when I'm hugging my son and he wants attention too 
  
I find it so sad that people are always trying to "fix" what they think is wrong with dogs when what is really wrong is people's inability to just accept them as they are