I work in a bank as a teller. Money is dirty!! On the teller part of the bank we can get bills with blood, sweat, cement, gum, candy, you name it. Amongst the coin we cash in you will find teeth, hair, drill bits, dirt, nails (finger, toe, and the kind you hammer) the list goes on and on. However my idea is to find a mint that evaluates money and decide to recirculate it or scrap it and see the area they work in and the money (coin and bills) that comes through the hands of ourselves, loved ones & enemies. Let me just say YUCK!