I-Mastiffs ihlakaniphile kwaye intle, ihlala yenza ngokuzithemba, ifuna inkampani eqhubekayo yomnini. Abadlali, abafane bakhonkothe, kwaye basebenza ngokuphakathi. Kwisilwanyana, kwanele nje ukuba sisondele kumniniyo, inja ihlala ibonakaliswe njengetapile ye-sofa engenakonakala. I-Mastiff ayibonakalisi ubundlobongela kubantu abangabaziyo, ithembele ngamandla akhe kunye namandla.
Inja ayisoze ibaleke ekhaya kwaye ayiyi kubhadula. Iyahluka ngococeko, ukuhlamba kuvumelekile kanye kuphela ngeveki. Nangona kunjalo, i-mastiff ineengxaki. Okokuqala, ukunyuka kwe-salivation, okudinga ingqalelo eyongezelelweyo kunye nokunyamekela. Okwesibini, iyakwazi ukuphazamisa umniniyo ebusuku, ngexesha lokulala lixhomekeke kwi-snoring enkulu.