For many years I have heard trainers repeat that "you must teach the dog not to pull on the leash".
One statement, two mistakes.
"In canids and dogs, urination is also part of social communication, representing both an olfactory and a visual signal (posture)."
"The bow is one of the most misunderstood behaviors in canine communication."
We have learned that in order to train a dog we must use positive reinforcement: a dog's behavior leads to a positive consequence = the dog repeats the behavior.