Ploughs and wagons could be drawn by four or more oxen or horses in sets of two behind each other. Oxenshoes and horseshoes prevented lameness due to cracked hooves. Horse collars especially fitted for horses, replaced oxen yoke that had been used on horses. The horse collar did not restrict breathing and enabled horses to use the same strength of oxen. Also, horses had better endurance and faster speed. A free holder's house was wood, perhaps with a stone foundation, and roofed with thatch or tiles. There was a main room or hall, with bed chambers around it. Beyond was the kitchen, perhaps outside under a lean-to. These buildings were surrounded by a bank or stiff hedge. Simple people lived in huts made from wood and mud, with one door and no windows. They slept around a wood-burning fire in the middle of the earthen floor. They wore shapeless clothes of goat hair and unprocessed wool from their sheep. They ate rough brown bread, vegetable and grain broth, ale from barley, bacon, beans, milk, cabbage, onion, apples, plums, cherries, and honey for sweetening or mead. Vegetables grown in the country included onions, leeks, celery, lettuce, radish, carrots, garlic, shallots, parsnip, dill, chervil, marigold, coriander, and poppy. In the summer, they ate boiled or raw veal and wild fowl such as ducks, geese, or pigeons, and game snared in the forest. Poultry was a luxury food, but recognized as therapeutic for invalids, especially in broth form [chicken soup]. Venison was highly prized. There were still some wild boar, which were hunted with long spears, a greyhound dog, and hunting horns. They sometimes mated with the domestic pigs which roamed the woodlands. In September, the old and infirm pigs were slaughtered and their sides of bacon smoked in the rafters for about a month. Their intestines provided skin for sausages. In the fall, cattle were slaughtered and salted for food during the winter because there was no more pasture for them. However, some cows and breed animals were kept through the winter. For their meals, people used wooden platters, sometimes earthenware plates, drinking horns, drinking cups from ash or alderwood turned on a foot-peddled pole lathe, and bottles made of leather. Their bowls, pans, and pitchers were made by the potter's wheel. Water could be boiled in pots made of iron, brass, lead, or clay. Water could be carried in leather bags because leather working preservative techniques improved so that tanning prevented stretching or decaying. At the back of each hut was a hole in the ground used as a latrine, which flies frequented. Moss was used for toilet paper. Parasitical worms in the stool were ubiquitous.