What is the meaning of “Dog Propensity”? Propensity is the tendency to behave in a certain way. In other words, the tendency to do the thing we do. “Dangerous Propensity” is the tendency of a dog to bite without provocation. If your dog is aggressive or considered reactive toward, children, adults, other dogs or household pets, he is dangerous. If your dog has growled, snapped or lunged at a person knocking them down, he is showied a display of warming signs that you need to pay attention to and seek professional guidance if you are unable to modify those behaviors before they become more of a threat. Barking is a “dog propensity” not a “dangerous propensity”.
The question I present to you is “has your dog shown a “Dangerous Propensity”? Do you have children in your home? Do you have other dogs or cats in your home Do you have elderly or disabled family members? I dog will almost always bite the weakest members of the household. 
Is the great predictor of the future, the past? Will a dog that has bitten, bite again? Like all situations that occur out of the blue, with no warning, with no provocation, with no sign of possibly ever happening, a dog that has never bitten, will not bite until the moment he does!!! What does that mean? Here’s an example: I’m called to a home for training and witness an extra-large (over 70lbs) adult dog in a crate, posturing or growling lowly, almost under its breath, and two dogs in side-by-side crates, “going at it” with each other. When I confront the pet parent about the fact that the dogs appear to have a propensity to be dangerous, the pet parent responds with the following statement. “My dog would never hurt my children”. My answer is “NOT UNTIL THE MOMENT HE DOES”.
Dogs are not kids in furry suits. This is not a joke. I can see the behavioral issues coming from a mile away when a pet parent relates to their dog as an infant human. We all, me included, love to love our dogs, dote over them, give them everything we can to make their lives better and more fun, protect and care for them, and even spoil them to some degree. HOWEVER, there has to be rules and boundaries in place just like there is for any human family member. If not, you dog is in control of everything he does; not you!
This is the most important thing to remember: If you don’t correct an unwanted behavior, you are validating it. If your dog bites once, and I don’t mean puppy nipping, and you don’t modify the behavior to correct it, then the message you send to your dog is, IT’S OK TO BITE.
Your canine family member cannot live in the gray zone of sometimes it’s OK and sometimes it’s not OK, especially when the behaviors are always unwanted like biting and jumping. Dogs ALWAYS make far better companions when they stay within the boundaries of YOU CAN OR YOU CAN’T do something.
Dogs are not cute puppies forever. They become adult dogs right before our eyes and it is the pet parents’ responsibility to teach their dog how to be a good companion and not how to be a happy little baby. I know you think that’s a strange way to put it but it’s a fact.
This too is a fact; pet parents that treat their large breed puppy as though it’s a human baby, by refusing to even say “NO’ in a strong commanding tone of voice, eventually use a SHOCK COLLAR to get the lovable monster they created under control. Others make a decision to send their teenage dog to boot camp where they will most likely be trained by the same shock collar method. What a shock!