Ama-Mastiffs ahlakaniphile futhi anemvelo enhle, ahlala enza ngokuzethemba, adinga inkampani ehlala njalo yomnikazi. Awadlali, awavamisile ukukhonkotha, futhi akhuthele ngokusesilinganisweni. Esilwaneni, kwanele nje ukuba seduze nomnikazi, inja ivame ukubonakala njengezambane le-sofa elingalungiseki. I-Mastiff ayibonisi ubudlova kubantu abangabazi, iqiniseka ngamandla akhe namandla.
Inja ayisoze yabaleka ekhaya futhi ayizulazula. Iyahluka ngokuhlanzeka, ukuwasha kuvumelekile kanye ngesonto. Nokho, i-mastiff inemibi. Okokuqala, ukwanda kwamathe, okudinga ukunakwa nokunakekelwa okwengeziwe. Okwesibili, iyakwazi ukuphazamisa umnikazi ebusuku, ngesikhathi sokulala ijwayele ukuhogela kakhulu.