had them in the 80s, they were good in the old days 1930s , when were used as keepers night dogs . but today bull mastiff are unfit,docile and to big to work proper, the old dogs were about -100lb fit agile dogs, todays pet stuff show stuff go up to 140lb slow+ bad hips ,the only bullmastiff I seen any good today was x to a pit it looked more like the old type bullmastiff of the 1930s. if wanted a good guard/watch dog get a well bred Alsatian from working lines, a 80lb male will stop any man , and be far more alert than any bullmastiff
Agree 100% on the Bullmastiffs Ray Wo