Dogs can become aggressive for a variety of reasons, whether it’s due to fear, insecurity, frustration, mistrust of strangers, or just a general lack of socialization. Whatever the reason may be, dog owners need to be aware of the signs of aggression in their dogs and how to properly (and safely) address it. One way to help an aggressive dog is through desensitization and counter-conditioning. In many cases, aggressive behaviors like lunging, barking, and growling can be decreased through a process called desensitization and counter-conditioning.