Just another thought: dealing with these breeds is not about knowing what they CAN do, but knowing what they WILL do under certain situations. For instance, my Corso has a "comfort zone" and becomes very "attentive" when someone enters that zone. You have to be able to see what your dog sees, and how they interpret that. Properly trained, a corso will look to the owner for an indication of how to react. If they get no indication, they choose what they feel is appropriate. THE single most useful command for a corso, or any dog for that matter is LOOK. Literally look at me and listen to what I am saying. You must be able to get and maintain the attention of a Corso to direct his actions. Obedience training should start the moment you touch your puppy. Yes, they are cute, but they NEED guidance even as a puppy As guardians, they are phenomenal; you don;t have to train them to watch over things Once they identify who their person is and what they are guarding you will see that trait Get ahold of that as soon as you see it. I literally tell my dog to stand down, letting her know that I see what she is alerting to and have made the decision for her to do nothing. However, there is NO ONE who comes to our front door, whether she knows them or not, that isn't greeted with a menacing growl or outright bone rattling bark. Once you have accepted the person into your home, they chill out. My Corso ALWAYS puts herself between me and the other person and is vigilant. They need mental stimulation and physical exercise to make them healthy and happy. This is not a dog you get because of how they look; how they look is how they can become if not properly handled.