of special circumstances. Thus although grave necessity does not excuse theft, yet it may lessen the sin and cause to be venial what would otherwise be mortal. In the same way, less unwillingness on the part of the owner may lessen the sin. A father is less unwilling as a rule that a little of his money should be taken by a member of his family, especially if it is for a good purpose, than by a common thief. On this ground some divines say that in thefts from parents a double quantity is required for grave matter. Also when a number of small thefts are committed, which in the aggregate amount to grave matter, a larger sum is required for a mortal sin than when it is all taken at once. For the loss is not felt so keenly, and so the owner is not so unwilling.
4. That small thefts may coalesce and constitute grave matter is certain, for by a number of small thefts grave harm may be done, and the opposite opinion is implicitly condemned by the 38th proposition condemned by Innocent XI. Small thefts coalesce if the intention of the thief is to take a considerable sum, but for some special reason he takes it in small quantities at different times. Similarly, if a number conspire together to steal from another, they will all commit grave sin if grave damage be inflicted, even though each one only, obtains a small sum. Also, when the proceeds of pilferings are hoarded, grave sin will be committed when grave matter is reached, or even if the proceeds be spent and do not coalesce by accession as in the preceding case, the different pilferings will coalesce and constitute one moral act of injustice if the interval be not notable not over two months as some theologians say. -On the other hand, small thefts committed at wide intervals of time, and which do not coalesce on account of any of the reasons given above, do not constitute one moral act, and remain so many venial sins of theft.
The theft of something of small money value, but whose loss is very keenly felt for reasons of affection or association, will be a venial sin against justice, but a mortal sin against charity, if it was foreseen that its loss would cause very serious pain to the owner.