Loan sharks may conjure up an image of tough guys in fedoras looking to make a profit off of desperate people in dire financial straits, but in reality, lenders who advance small sums of cash at high interest rates until payday existed long before organized crime entered the trade. Today the businesses that fill this niche in the credit market prefer the name 'payday lenders' rather than loan sharks, but most large cities are still a hotbed of usurious lending, and the landscapes are dotted with their inviting and brightly colored storefronts. Despite their more respectable name, these...