The Neapolitan Mastiff is an an extraordinarily intelligent dog with a great ability to distinguish its friends from its enemies. Don't let the droopy face of the Neapolitan fool you into thinking that the dog is a dullard. Nothing could be further from the truth.
However, the Neapolitan Mastiff is not a breed for everyone. These dogs salivate more than any other breed that we are aware of and often tend to be messy eaters. In view of their extraordinary size, these characteristics render the Neapolitan absolutely unsuitable as an indoor dog unless it is to have an area of a large home that is primarily its own. These dogs are most at home on an estate or in any home surrounded by a large piece of property. in such an environment, they are among the world's greatest manstopping guard dogs.