The bullies I have known have had a REALLY high tolerance for discomfort. Patsy will actually let me work on her teeth with a steel dental tool completely unsedated. She'll also show her belly to a stranger, and lets people pick her right up and walk around with her. She loves kids, even in groups, and has never tried to herd them- instead, she sits down in the middle of the floor and waits to be petted. I lucked out. Since they were bred not to lose their work drive even when injured, it makes sense that their temperament remains steady even when they aren't comfortable.