The fate of this young man was a serious warning to me. I had become, from habit, so extremely active, and fond of displaying my newly-acquired gymnastics, called by the sailors "sky-larking" that my speedy exit was often prognosticated by the old quarter-masters, and even by the officers. It was clearly understood that I was either to be drowned or was to break my neck; for the latter I took my chance pretty fairly, going up and down the rigging like a monkey. Few of the topmen could equal me in speed, still fewer surpass me in feats of daring activity. I could run along the topsail yards out to the yard-arm, go from one mast to the other by the stays, or down on deck in the twinkling of an eye by the topsail halyards; and, as I knew myself to be an expert swimmer, I cared little about the chance of being drowned; but when I witnessed the fate of the poor marine, who I saw could swim as well, if not better than myself, I became much more cautious. I perceived that there might be situations in which swimming could be of no use; and however beloved I might have been by the sailors, it was evident that, even if they had the inclination, they might not always have the power to relieve me: from this time, I became much more guarded in my movements aloft. A circumstance occurred shortly after we got to sea which afforded me infinite satisfaction. Murphy, whose disposition led him to bully every one whom he thought he could master, fixed a quarrel on a very quiet, gentlemanly young man, a supernumerary midshipman, who had come on board for a passage to his own ship, then down in the Bay of Biscay. The young man, resenting this improper behaviour, challenged Murphy to fight, and the challenge was accepted; but as the supernumerary was engaged to dine with the captain, he proposed that the meeting should not take place till after dinner, not wishing to exhibit a black eye at the captain's table. This was considered by Murphy as an evasion; and he added further insult by saying that he supposed his antagonist wanted Dutch courage, and that if he did not get wine enough in the cabin, he would not fight at all. The high-spirited youth made no reply to this insolence; but, having dressed himself, went up to dinner; that over, and after the muster at quarters, he called Mr Murphy into the steerage, and gave him as sound a drubbing as he ever received in his life. The fight, or set-to, lasted only a quarter of an hour, and the young supernumerary displayed so much science, and such a thorough use of his fists, as to defy the brutal force of his opponent, who could not touch him, and who was glad to retreat to his berth, followed by the groans and hisses of all the midshipmen, in which I most cordially joined. After so clear a proof of the advantages of the science of self-defence, I determined to acquire it; and, with the young stranger for my tutor, I soon became a proficient in the art of boxing, and able to cope with Murphy and his supporters.