How Pearls Are MadeEdit
When Our Father wanted to give the economy of Biblical times a boost, He would inseminate a clam with a grain of sand. This grain of sand would cause the clam great irritation and distress. The clam was never in any real danger, however, nor did it suffer any organ failure, so no one can call it torture (not that there's anything wrong with that).
Once certain important bits of information were extracted from the clam, Our Lord would allow the precious gem to be extricated from the clam as a stimulus to the economy.