When his boss demands an accounting, the manager knows that he has no defense. And, he doesn't think he's going to be able to get a job as good as the one he has. The only prospects he sees are manual labor or begging.
Since, he doesn't want to do either of those, he comes up with an alternative plan. He summons each of his master's creditors and reduces the amount they owe. Whatever his previous shortcomings had been, this act is certainly dishonest. He has been entrusted with the care of someone else's resources, and he is misusing them to satisfy his own needs.
How are we to interpret this parable? One alternative is to assume that the boss represents God and that the manager represents the church. We treat the world and the goods in it as if they are ours. We use them for our own benefit, or we waste them without considering whose they really are. How would we react if God called us to account? How would we try to justify our decisions and our behavior?
The manager in the parable took actions that would prevent the master from getting his due. In what ways, do we that make up the church act that would limit what the world understands about God?