13. When there is a question whether an act was accidental or intentional, or done with a particular knowledge or intention, the fact that such act formed part of a series of similar occurrences, in each of which the person doing the act was concerned, is relevant.
Illustrations.
(a) Ais accused of burning down his house in order to obtain money for which it is insured. The facts that A lived in several houses successively each of which he insured, in each of which a fire occurred, and after each of which fires A received payment from a different insurance company, are relevant, as tending to show that the fires were not accidental.
(b) Ais employed to receive money from the debtors of B. It is A's duty to make entries in a book showing the amounts received by him. He makes an entry showing that on a particular occasion he received less than he really did receive. The question is, whether this false entry was accidental or intentional. The facts that other entries made by A in the same book are false, and that the false entry is in each case in favour of A, are relevant.
(c) Ais accused of fraudulently delivering to B a counterfeit currency. The question is, whether the delivery of the currency was accidental. The facts that, soon before or soon after the delivery to B, A delivered counterfeit currency to C, D and E are relevant, as showing that the delivery to B was not accidental.