The sins of a person's life are passed to priests discretely, during confession. However, as God wishes to evaluate sins over an entire lifetime, and therefore continuously over an interval, discrete sampling of Sins is not sufficient to determine the fate of an individual. Rather, God must wrack His brain over the Cos's. It is awkward but not uncommon for a new arrival at the Pearly Gates to argue that using that cigar on that intern did not cause that dot-com bust. (That is, "sometimes a cigar is just a cigar.")