you were sitting at the bar on Shell Island when a fight broke out between a green haired swordsman and a blond marine. Soon other marines attacked him too but he took them out without even drawing his sword. He turned to the blond marine

Zoro: Don't draw your blade unless you're prepared to use it.

Helmeppo: please don't kill me. My father will give you anything you want?

Zoro: and who's your father?

Helmeppo: Captain Morgan.

Zoro: Then he owes me money.