Take two groups that hate each other to the point of violence and murder. For this example, I will use Crips and Bloods, since that is something that both real and also won't offend anyone too much. make

Alice borrows 1 BTC from Bob under contract Alice now has 1 BTC asset and promise to pay Bob 1 BTC Alice sells 1 BTC to Carol for fiat Alice now has fiat and a promise to pay Bob 1 BTC If Alice is lucky: