Dog-dog aggression is something many dog owners deal with. Dog trainer and trainer educator, Kristi Benson, has written an eye-opening and extremely informative blog post on how to approach dog-dog aggression, which often depends on the type of aggression. Sometimes, nothing needs to be done. In other contexts, dogs may need training and behavior modification using modern, humane methods. Fear is one common reason for dog-dog aggression, and Kristi explains why using techniques to scare or hurt dogs has no place in the training of dog-aggressive dogs. We have effective, humane methods for modifying dog behavior in the 21st Century. There is no place for yelling, shock collars, prong collars, choke collars, swatting, leash jerks, or collar pops. These outdated aggressive techniques can actually make dog-aggressive dogs more aggressive.