We adopted a 4year old black mouth cur that had zero training. I’ve had dogs throughout my 60 years of life and knew we needed help. I wasn’t crazy About the “bah” fear technique used for teaching and found it plus the water bottle, simply made my dog run away and fear us. I decided to use behavior modification and reward techniques , which I had success with in the past, and within months I had a very well “trained” and “behaved dog”; yes he learned simple hand signals. No yelling. No bahing. No dog cowering. Just a dog who was eager to please. Call me uninformed but when I attended the national police dog competition I noticed not one of the trainers shouting bah or throwing bags of chains or sprayed water at their dogs. BTW. My previous dog learned hand signals which became very important in his senior years after he lost his hearing.