For the first 6 months that I had my dog I was home with him and I recently took a job that I am now gone 8 hours a day. I have a sitter that is able to check on Bordeaux at lunch time but during the 4 hour stretches before the sitter comes and when I get home he barks. I have started to get complaints from a sensitive neighbor and I was wondering if anyone had any advice on how I can teach my dog to be a silent roommate while I am away.

Thanks