If any one have any doubt of this, let him conceive the offenee to be divided into as many separate offenses as there are distinguishable parcels a of mischief that result from it. Let it consist, for example, in a man's giving you ten blows, or stealing from you ten shillings. If then, for giving you ten blows, he is punished no more than for giving you five, the giving you five of these ten blows is an offense for which there is no punishment at all: which being understood, as often as a man gives you five blows, he will be sure to give you five more, since he may have the pleasure of giving you these five for nothing. In like manner, if for stealing from you ten shillings, he is punished no more than for stealing five, the stealing of the remaining five of those ten shillings is an offense for whieh there is no punishment at all. This rule is violated in almost every page of every body of laws I have ever seen.
The profit, it is to be observed, though frequently, is not constantly, proportioned to the mischief: for example, where a thief, along with the things he covets, steals others which are of no use to him. This may happen through wantonness, indolence, precipitation, &c. &c.
IPML Chapter 14