Last night I was at a party where I met a guy working for a farm. From the conversation it came out the the farm rents the land out to summer festivals and that the metal left behind from the festival goers gets eaten by the cows (the poor things eat anything and even if they try to pick up the rubbish things get left behind). You can imagine what a problem this can be for the poor cows so what they do is to feed the cows a magnet which can keep the metal all bundled together so that it does not cause any damage. The acid juice in the cow's gut eventually dissolve the metal leaving the magnet intact for future magnetic attractions. When I heard this story I was half amused and half worried because the dissolved metal (possible iron, nickel, alluminium, etc) gets metabolised by the cows ending up in their milk and meat. I knew of all sorts of reasons to go organic, but this one is the most original!
