"Then the whole company began to run with the long loping strides of Orcs. They kept no order, thrusting, jostling, and cursing; yet their speed was very great. Each hobbit had a guard of three. Pippin was far back in the line. He wondered how long he would be able to go on at this pace: he had had no food since the morning. One of his guards had a whip. But at present the orc-liquor was still hot in him. His wits, too, were wide-awake."
--"The Uruk-Hai," The Two Towers