When our dogs meet on leash, they are typically forced to approach head-on and are often unable to turn their bodies. Their forced body language, and our own, tell our dogs that we want to fight with one another. Most dogs don’t want to fight, so they display a number of behaviors designed to prevent it. These distance-increasing behaviors includes barking, lunging, or growling — anything to make the threat go away. On-leash, both dogs feel trapped, unable to get away from each other. Often, owners have their dogs on tight leashes, thinking this will help if anything happens. Unfortunately, a tight leash tells your dog you're stressed, making your pup more stressed in return. Many owners don’t recognize rude behavior in their dogs, thinking they’re just overly friendly. They may let their dog charge up to another one, get in their face, or jump on them. This is extremely rude behavior among dogs and is sometimes the result of a lack of socialization past the puppy stage. Adult dogs, while patient with puppy antics, will usually start to discipline puppies once they reach 5-6 months.