If the dog was a Cane Corso, read up on the breed, itās not necessarily a dog Iād want to own. One of my former neighbors had one. Rarely put her on leash despite the fact that we have leash laws. While she never showed aggression towards my dog, my dog avoided her - when weād leave my house for a walk, my dog would look towards the Caneās house and if she was outside, mine would run back to my door. LOL. I trusted her instinct so weād wait until Cane was back inside. This is a bit from a quick google. I donāt want to be anti-breed but certainly if one has one of the guard type dogs they need to be much more vigilant with them in public areas. One of my friends has a JR who loves to prove heās a tough guy with other dogs. Whenever theyāre out walking sheās always telling people to keep their dogs away from him as heās liable to start something. As with all mastiffs, socialization is an absolute requirement to promote the correct temperament, which should be protective in a calm and discriminating way. Unfortunately, an awful lot of people are breeding or raising these dogs in irresponsible ways and the result is an awful lot of Cane Corsos with unstable or aggressive temperaments that can be dangerous to innocent people. Though the Cane Corso was not used for dog-fighting, dog aggression (often very serious) can still be a problem. He should be thoroughly socialized with other dogs from an early age. I wouldnāt keep a Cane Corso with another large dog of the same sex.