I once worked as an aide with a very demented elderly man, very unsteady gait at the best of times, who once worked in a brickyard. His daughter told me they would crush bricks in their bare hands for entertainment. He later worked as a fireman. One night when there was a fire in the neighborhood, with sirens going for hours, he was in a bad way. I nearly had my forearm twisted to breaking while the nurse gave him a sedative. I could feel the bones bending.