A preacher travelled about the country giving sermons on the evils and dangers of strong drink. At the start of his talk he would fill a glass with water and another with whiskey and drop a worm into each. At the end of his sermon he held up both glasses to show that the worm in the water was still wriggling about whereas the one that had been dropped into the whiskey was dead. This went well until one evening in a small rural hall he held up the glasses and asked "Does this prove anything to you?" A voice from the back of the hall replies " Yea, if you drink whiskey you don't get worms !"