A bit like your Staffy, the dog came to us as an adult mate.....two old girls had him in Canterbury, he was in a little back room and they said to my old man " if you can get him, you can have him!" .......my old fella walked in, calmed the animal for a minute then lifted him and did no more than walk directly out the place and drop the dog on my mothers lap in the front of the motor!!!......funny enough, this mean bad to the bone dog would never even curl a lip to my mother for the rest of its life.
When his time came, we could see the dog wasn't right but as usual he would not be f****d