The Tosa is a breed that is considered rare. Ownership is restricted in some countries as they are considered dangerous. Marked by patience, composure, boldness and courage. With a calm but vigilant demeanor. Overtly aggressive behavior towards humans is uncharacteristic. But don't press your luck. Is wary of strangers and other intruders, and can be aggressive with such types. / / / / / For those wondering what this is. This isn't anything to take too seriously as a defining characteristic. Just giving a more personalized banner to the group.