I further understood, that he would get drunk whenever he had an opportunity, and when intoxicated he was completely insane. He was also subject to fits of temporary derangement, independent of the insanity produced by excessive drinking, when he was both furious and dangerous; and it was always necessary, on such occasions, to confine him in irons. He was also represented as being extremely reserved, and refusing to answer any questions respecting himself, whether addressed to him by officers or seamen; that he spoke with fluency all European languages, on which account, he was extremely useful as an interpreter, both on the coast of Peru and Chili, and on that of Brazil; that he was a first rate swordsman, either with the small-sword or sabre, and a dead shot with pistol or musket.
During his short stay on board the frigate, he had one of his temporary fits of insanity, probably induced by excessive intemperance, if intemperance admits of superlatives, while on shore. He suddenly started up from a gloomy, stupid reverie, and ran about the decks like a wild beast, striking and knocking down, every one he met; then all at once plunging down the main-hatchway, he attempted to get possession of one of the boarding cutlasses, but fortunately they were well secured in the racks over the guns, to prevent them from falling down with the motion of the ship. Before he could make a second and more regular attempt, he was secured, put in irons, and placed under charge of a sentry. Had he succeeded in arming himself, he would have made bloody work on the quarter-deck, towards which it seemed evident he was steering his course; the uniforms of the officers, and marine guard, probably calling up to his diseased imagination, and memory, scenes of by-gone days connected with or the remote cause of his present insanity. The officers seemed to be so far acquainted with his history, as to feel compassion for his most wretched situation; for, as he manifested no symptoms of derangement the next morning, except his usual deep melancholy, he was discharged from confinement, to the great astonishment of the ship's company; for though the discipline on board was as mild as it could be consistent with the preservation of good order, and perfectly free from that tyranny that but too many of our navy officers think indispensable, they certainly were not accustomed to seeing such quiet jail deliveries.