this is an old one, some years ago, Nissan ,before they were called Nissan ,having so many orders for their cars, had to farm out some of their work to US firms, in particular gear wheels for the transmission ,one day (to shorten the story a little!) a transport plane carrying a load of these parts,with engine problems, exploded in the air over China and its cargo, thrown out from its packing cases, precipitated down over a small town, when asked by the poor local folk saying (polite translation!) what's happening!, is the sky falling?, Ho, the local mechanic, replied, "No ,it's just raining Datsun cogs!"
Giles
Giles