Betty had never possessed such a sum before. She grudged to lay it out all at once, and was ready to fancy she could live upon the capital. The crown, however, was laid out to the best advantage. Betty was carefully taught in what manner to cry her oranges; and received many useful lessons how to get off the bad with the good, and the stale with the fresh. Mrs. Sponge also lent her a few bad sixpences, for which she ordered her to bring home good ones at night. Betty stared. Mrs. Sponge said, "Betty, those who would get money, must not be too nice about trifles. Keep one of these sixpences in your hand, and if an ignorant young customer gives you a good sixpence, do you immediately slip it into your other hand, and give him the bad one, declaring that it is the very one you have just received, and be ready to swear that you have not another sixpence in the world. You must also learn how to treat different sorts of customers. To some you may put off, with safety, goods which would be quite unsaleable to others. Never offer bad fruit, Betty, to those who know better; never waste the good on those who may be put off with worse; put good oranges at top to attract the eye, and the mouldy ones under for sale." Poor Betty had not a nice conscience, for she had never learned that grand, but simple rule of all moral obligation, _Never do that to another which you would not have another do to you._ She set off with her barrow, as proud and as happy as if she had been set up in the first shop in Covent Garden. Betty had a sort of natural good temper, which made her unwilling to impose, but she had no principle which told her it was sin to do so. She had such good success, that when night came, she had not an orange left. With a light heart she drove her empty barrow to Mrs. Sponge's door. She went in with a merry face, and threw down on the counter every farthing she had taken. "Betty," said Mrs. Sponge, "I have a right to it all, as it was got by my money. But I am too generous to take it. I will therefore only take a sixpence for this day's use of my five shillings. This is a most reasonable interest, and I will lend you the same sum to trade with to-morrow, and so on; you only paying me sixpence for the use of it every night, which will be a great bargain to you. You must also pay me my price every night for your supper, and you shall have an excellent lodging above stairs; so you see every thing will now be provided for you in a genteel manner, through my generosity."[11] [11] For an authentic account of numberless frauds of this kind, see that very useful work of Mr. Colquhoun on the "Police of the Metropolis of London."