their pen–they use one corner of it for their 'toilet'. Ideally, a cement wallow which contains water cools the pig much better. Alternatively, shade may be provided for the pigs. Pink pigs are especially prone to sunburn. Many family farm hog pens were improvised enclosures made of any handy free material. The pen is often kept small to conserve building material and effort. Slopping the hogs Historically, these farms fed hogs on grain, fruit and vegetables that are not fit for sale or family use. Overage produce from the farmer’s market and table and restaurant scraps were often diet elements as well. This practice of 'swill feeding' (feeding table scraps) is considered a disease risk today, though this is mainly associated with feeding meat to pigs, which is banned in many countries. Hogs were also fed "slops" made from middlings or corn meal stirred with milk and water. Historically, hogs were also allowed to forage in gardens and orchards after the harvest was over. Such foraging can cause erosion and runoff, but the small scale of these operations prevented this from occurring. See also Aldred's Case Pig farming Pig slaughter Pig toilet Slaughter house St Fagans National History Museum References Agricultural buildings Buildings and structures used to confine animals