1912. Moral Connection between Repeated Acts of Theft.—The moral connection between repeated acts of theft by one person is necessary, as was said, in order that these acts unite into one grave sin. This moral connection does not exist, however, if the series is broken by interruption or revocation.
(a) Thus, the connection is broken by interruption when there is a long interval between small thefts, because thefts that are small and infrequent do not inflict severe loss on individuals or society. This supposes, of course, that there is no intention to practise small thievery habitually in order to become enriched by it, but that one steals now and then as opportunity or necessity occurs, or (according to some) that one intends to steal only small amounts and at long intervals.
(b) The connection is also broken by restitution or revocation. It is clear that, if the thief has given back his former thefts, they should not be computed with later thefts; and it seems also—though some do not admit this—that, if he has sincerely resolved to give back things taken before (e.g., things which are useless for him), there is no moral connection between the past thefts and a theft he is committing now.
1913. Interval of Time between Acts of Theft.—The interval of time that breaks the connection between small thefts cannot be determined with mathematical exactness, but the following rule seems to be accurate enough: thefts combine to form a great theft only when considerable property is taken by degrees, but within such a brief period of time as to be of notable advantage to the thief and of notable disadvantage to the loser. Some moralists think that six months is a long space, sufficient to prevent union between thefts, but that two months is too short a space to prevent the union; others, on the contrary, believe that the amounts stolen should be taken into consideration; and hence that the following intervals between thefts separate them into distinct venial sins without coalescence:
(a) a period of one year between thefts, each of which almost amounts to grave matter, when the property is kept (e.g., when a dressmaker who has kept not a little of her patron’s material of a twelvemonth ago does the same thing again this year);
(b) a period of two months, when the matters are almost grave, but the property is not kept (e.g., when a thief who beat a restaurant out of the price of a very elaborate meal at the beginning of January does the same thing at the beginning of March). But it is hard to see how one could have the habit of stealing in this way and not have the intention of stealing a large amount, for a person who steals what is almost grave matter every two months or so must realize that he will shortly be enriched to a considerable extent by his dishonesty. Moreover, the interval of two months might be needed by the thief for avoiding suspicion;
(c) a period of one month, when the thing stolen falls far short of grave matter (e.g., a meal of simple fare plainly cooked and served);
(d) a period of about two weeks, when the matters are very small (e.g., when a thief takes a few secret sips from a wine bottle on each of his fortnightly visits to a certain house, or carries away some trifling object as a souvenir). These thefts would not surpass five or ten cents a month;
(e) some authors think that one week or perhaps even one day will prevent coalescence between extremely small thefts; and surely there are some paltry objects (e.g., a pin or needle, a match, a small lump of coal, a piece of string) which would not total a large value even after many years have passed.
1914. Species and Number of Petty Thefts that Coalesce into Grave Matter.—(a) If the thefts proceed from a previously formed purpose of stealing by installments a large sum, each of them is a mortal sin, but they do not form numerically distinct sins, unless there was a revocation of the intent (see 214, 215).