Cauring is an old gypsy trick - here's how it works:
The Gypsy has some queer, old-fashioned gold piece; this she takes to some goldsmith's shop, at the window of which she has observed a basin full of old gold coins, and shows it to the goldsmith, asking him if he will purchase it. He looks at it attentively, and sees that it is of very pure gold; whereupon he says that he has no particular objection to buy it; but that as it is very old it is not of much value, and that he has several like it.
"Have you indeed, Master?" says the Gypsy; "then pray show them to me, and I will buy them; for, to tell you the truth, I would rather buy than sell pieces like this, for I have a great respect for them, and know their value: give me back my coin, and I will compare any you have with it."
The goldsmith gives her back her coin, takes his basin of gold from the window, and places it on the counter. The Gypsy puts down her head, and pries into the basin. "Ah, I see nothing here like my coin," says she. "Now, Master, to oblige me, take out a handful of the coins and lay them on the counter; I am a poor, honest woman, Master, and do not wish to put my hand into your basin. Oh! if I could find one coin like my own, I would give much money for it; barributer than it is worth."
The goldsmith, to oblige the poor, simple, foreign creature (for such he believes her to be), and, with a considerable hope of profit, takes a handful of coins from the basin and puts them upon the counter.
"I fear there is none here like mine, Master," says the Gypsy, moving the coins rapidly with the tips of her fingers. "No, no, there is not one here like mine - kek yeck, kek yeck - notone, not one. Stay, stay! What's this, what's this? So se cavo, so se cavo? Oh, here is one like mine; or if not quite like, like enough to suit me. Now, Master, what will you take for this coin?"
The goldsmith looks at it, and names a price considerably above the value; whereupon she says: "Now, Master, I will deal fairly with you: you have not asked me the full value of the coin by three three-groats, three-groats, three-groats; by trin tringurushis, tringurushis, tringurushis. So here's the money you asked, Master, and three three-groats, three shillings, besides. God bless you, Master! You would have cheated yourself, but the poor woman would not let you; for though she is poor she is honest": and thus she takes her leave, leaving the goldsmith very well satisfied with his customer - with little reason, however, for out of about twenty coins which he laid on the counter she had filched at least three, which her brown nimble fingers, though they seemingly scarcely touched the gold, contrived to convey up her sleeves.
This kind of pilfering is called by the English Gypsies cauring, and by the Spanish ustilar pastesas, or stealing with the fingers. The word caur seems to be connected with the English cower, and the Hebrew kãra, a word of frequent occurrence in the historical part of the Old Testament, and signifying to bend, stoop down, incurvare.
From: Romano Lavo-Lil