I discreetly held my peace, but inquiries next day confirmed my suspicions that prime helpings from each course of my neighbour's dinner had been carried off by my cook. Immediately under the boy for indoor work is the "house-coolie," whose business it is to swab floors, polish grates, light fires, trim lamps, clean knives and boots and make himself generally useful about the house. Oftentimes he is unable to speak any English, wears a short coat in contradistinction to the boy's long one, and while ranking below the boy is considerably above the other coolies as having better pay, pleasanter work and holding a position of trust. At the chief entrance to most residences is a gatehouse, tenanted during the day by an old man who serves as gatekeeper, and who is responsible for keeping bad characters off the premises as well as for not allowing anything to be taken away. At sunset he goes home, being relieved by the night-watchman, who remains on duty till sunrise. He also is responsible for the general safety, and is not supposed to sleep during the night, but to be on guard. Every two hours, that is, at each of the five watches into which the night is divided, he should make a round of the outbuildings to satisfy himself that all's well. This he does not do quietly, but to the beating of a bamboo rattle, so that thieves may know he is on the lookout and run away. Sometimes, in order to keep up his courage, I have even heard him shout "I see you," "I know who you are," "I'm coming," "Who's afraid?" etc. Ridiculous as this may appear to English burglars it is yet very effective, though for a very curious reason. China is the country of guilds, every trade being in the hands of a certain section of the population, who combine against all intruders. There is a guild of water-carriers, a guild of fortune-tellers, a guild of pipe-makers, and even a guild of _thieves_. This last is a recognised body, and is treated with by all householders, until it has become a kind of insurance agency against theft. All gatekeepers and night-watchmen pay a small monthly fee to this guild in order that no thieving may take place on the premises over which they have control, and the system works well, for not only is anything rarely stolen, but if, occasionally, something does go it is almost certain to have been taken by a free lance, who would be promptly done to death should he fall into the clutches of the guild thieves. A friend of mine who employs many hundreds of coolies pays a regular monthly salary to the head of the thieves in that district. This man comes to the office on pay-days like other _employes_ to draw his wages. If, however, anything has been missed from the factory during the month the value of it is deducted from his salary until the article is restored, which is invariably done.