Hi,

I have a 1 1/2 year old male who has an aggression problem, and of course barking.  I have taken him to many training classes and at times he is well behaved and can do every trick in the book.  But he hates people he doesn’t know and is very vicious sounding. He barks at pretty much every person he doesn’t know.  I thought I was doing well with the training, but doesn’t seem to work.  I have been very patient and persisitent, but he seems to be getting worse. I am not sure what else to do?? Any suggestions?? Thank you..