I don't like pain inducing shock collars, or negative reinforcement and this provided a safe and effective way to tell my dogs to stop bad behavior. I'm not sure why they don't like the noise but it really does seem to break the habit. At this point I just have to reach for the can and they stop! It's really great to find something like this on the market that is painless. I will say that I don't use this product all the time, I think traditional dog training and positive reinforcement are the best ways to train your dog to behave, but this provides a great option for stopping bad behavior right away.