My grandfather started trading in the New Hebrides (now Vanuatu) at the age of 13 with a small sailboat. He'd buy copra (coconut 'meat') and trocus shells from the canibals, sell it in Villa at a profit, load up with calico, razor blades, hand tools etc then sell them to the same natives at another profit. In those days canibalism was still in full swing. He survived in those outer islands because he was so damn mean the natives were frightened of him.