mass production

So dad had gotten one of his teeth "uninstalled" for the price of a... shall we say, a whole new head? And that triggered a spontaneous murmur of appreciation of Heaven from mom:

mom: imagine if the price the dentist charged for doing this is so high, how does God afford to make so many human beings, with all their parts perfectly

son: well, looking at the population, i am guessing He is cutting costs by mass producing us... maybe there's a factory in china or something

dad: hahaha