Niccolo Grosso was an eccentric and self-willed person, claiming justice for himself and giving it to others, and never covetous of what was not his own. He would never give anyone credit in the payment of his works, and always insisted on having his earnest-money. For this reason Lorenzo de' Medici called him Il Caparra,[28] and he was known to many others by that name. He had a sign fixed over his shop, wherein were books burning; wherefore, when one asked for time to make his payment, he would say, "I cannot give it, for my books are burning, and I can enter no more debtors in them." He was commissioned by the honourable Captains of the Guelph party to make a pair of andirons, which, when he had finished them, were sent for several times. But he kept saying, "On this anvil do I sweat and labour, and on it will I have my money paid down." Whereupon they sent to him once more for the work, with a message that he should come for his money, for he would straightway be paid; but he, still obstinate, answered that they must first bring the money. The provveditore, therefore, knowing that the Captains wished to see the work, fell into a rage, and sent to him saying that he had received half the money, and that when he had dispatched the andirons, he would pay him the rest. On which account Caparra, recognizing that this was true, gave one of the andirons to the messenger, saying: "Take them this one, for it is theirs; and if it pleases them, bring me the rest of the money, and I will hand over the other; but at present it is mine." The officials, seeing the marvellous work that he had put into it, sent the money to his shop; and he sent them the other andiron. It is related, also, that Lorenzo de' Medici resolved to have some pieces of iron-work made, to be sent abroad as presents, in order that the excellence of Caparra might be made known. He went, therefore, to his shop, and happened to find him working at some things for certain poor people, from whom he had received part of the price as earnest-money. On Lorenzo making his request, Niccolo would in no way promise to serve him before having satisfied the others, saying that they had come to his shop before Lorenzo, and that he valued their money as much as his. To the same master some young men of the city brought a design, from which he was to make for them an iron instrument for breaking and forcing open other irons by means of a screw, but he absolutely refused to serve them; nay, he upbraided them, and said: "Nothing will induce me to serve you in such a matter; for these things are nothing but thieves' tools, or instruments for abducting and dishonouring young girls. Such things are not for me, I tell you, nor for you, who seem to me to be honest men." And they, perceiving that Caparra would not do their will, asked him who there was in Florence who might serve them; whereupon, flying into a rage, he drove them away with a torrent of abuse. He