I recently went trash picking after one of my school lectures. My psychotic teacher decided that he would show us how worthless money and the government was by tearing up a 5 and a 10 dollar bill. If I have enough of bills (more than half) but they are shredded into like 8 or 9 pieces can I take this to the bank and have them replaced. I will have a fun time explaining this one to the authorities.
The Bureau of Engraving and Printing does that. http://www.moneyfactory.gov/uscurrency/damagedcurrency.html and http://www.moneyfactory.gov/damagedcurrencyclaim.html