During this time, Arnold brought his sister Hannah to New Haven and established her in his apothecary to manage the business in his absence. He traveled extensively in the course of his business throughout New England and from Quebec to the West Indies, often in command of one of his own ships. On one of his voyages, he fought a duel in Honduras with a British sea captain who had called him a "damned Yankee, destitute of good manners or those of a gentleman". The captain was wounded in the first exchange of gunfire, and he apologized when Arnold threatened to aim to kill on the second. However, it is unknown whether this encounter actually happened or not.