In spite of this, Edward II. tried to carry out a similar piece of tyranny, but he was thwarted by John de Caustone, one of the sheriffs, who proved himself a stalwart leader of the citizens. Alan de Lek, serjeant-harbourer (provider of lodgings), prosecuted John de Caustone, and said 'that whereas his lordship the King, with his household, on the Monday next after the Feast of the Translation of Saint Thomas the Martyr, in the nineteenth year of the said King then reigning, came to the Tower of London, there at his good pleasure to abide; and the said Alan, the same day and year, as in virtue of his office bound to do, did assign lodgings unto one Richard de Ayremynne, secretary to his said lordship the King, in the house of the aforesaid John de Caustone, situate at Billyngesgate, in the city of London, and for the better knowing of the livery so made, did set the usual mark of chalk over the doors of the house aforesaid, as the practice is; and did also place men and serjeants, with the horses and harness of the said Richard, within the livery so made as aforesaid.' The sheriff knowing this to be an illegal exercise of royal privilege, boldly rubbed out the obnoxious marks and turned the King's men and serjeants out of his house. When he was brought to trial the Mayor and citizens appeared for him and pleaded the rights of the city. Caustone successfully defended himself before the Steward and Marshal of the King's household sitting in the Tower in judgment upon him, and he came off scot-free.[33] When we consider the smallness of the houses in the early period of the Middle Ages and the insufficient accommodation for families we see that the greater part of the population must of very necessity have constantly filled the streets, and the Londoners appear, from accounts that have come down to us, to have been rather a turbulent body. The watch and ward arranged for the protection of the city was efficient enough in quiet times, but when the inhabitants were troublesome it was quite insufficient. The regulations were strict, but the streets were crowded, as more than half of them were used as market-places, and every moment occasions for quarrelling arose, of which the young bloods were only too ready to avail themselves.