 Others perished when ships underway sank during storms or due to cases where profit-minded transporters overloaded their ships to maximize monetary gain.In order to pay for the voyage, Circassians sometimes were forced to sell their cattle, their belongings, or themselves into slavery.The operation was not done with any degree of efficiency by the Russians, forcing the Circassians typically to leave using unchartered vessels, thus opening themselves up to abuses by the captains of such vessels.