Im about to pull the trigger and get a bull mastiff or english mastiff but my wife read a few bad stories on the internet. She read that it got along initially with the shitzu but as it got older was too rough and bit the shitzu deep. It was establishing itsel as the pack leader I guess. It took me 2 months to convince my wife to get a mastiff and now she doesnt want it. Is this just a 1 sided story? Does anyone here have a little dog with a Mastiff?