This is a common issue, and the client who had this problem tried to figure out, why only certain dogs caused her dog to lunge and not every dog they encountered on their walks.
Because this behavior is random and unpredictable, it is very important to be vigilant and prepared at all times to correct the dog.
A prong collar and a slack leash are a very effective way to do just that. In addition, I would recommend talking to the folks who have the dogs that trigger the lunging. That way you can set up situations where the dogs have to pass each other at a safe distance. When the dog reacts and lunges, the prong collar will engage and most likely communicate to the dog to stop.
Sometimes it is necessary to try different training tools and see, which one works best for your dog.
Don’t forget to reward your dog, when they learn to make better decisions.
Longoriahaus Dog Training is a dog training service in the Kingwood and Houston, Texas Area. Longoriahaus Dog Training can help you raise a happy and reliable dog.