I-Mastiff sisilwanyana esinesidima kodwa esilungileyo. Unothando nothando kusapho lwakhe, kwaye ukuzola kwakhe kumenza iqabane elilungileyo labantwana abadala. Nangona kunjalo, olu hlobo alukhuthazwa kubantwana abancinci ngenxa yobukhulu bayo.
I-mastiff inokuba sisilo-qabane esihloniphekileyo, esinothando, kodwa ukugcinwa kwayo ngenzondelelo kufuna ukumodareyitha ngokusebenzisa intlalontle kunye noqeqesho lokuthobela. Kunyanzelekile ukwazisa iMastiff kubantu abaninzi abatsha, iindawo, kunye neemeko kangangoko kunokwenzeka, ngakumbi ngexesha leshedi yenjana.