“Whoever causes one of these little ones who believe in me to sin, it would be better for him if a great millstone were hung around his neck and he were thrown into the sea” (Mark 9:42). To get a good visual image of what millstones can do, watch the film, Amistad. In this movie, hundreds of pounds of stones are tied around passengers and then thrown off the ship dragging the people overboard and into the ocean.