Macdonough shared in all the glory of those splendid campaigns, and received the thanks and commendations of his superiors, besides promotion. In 1806 he was made first lieutenant of the Siren, one of the smart brigs that had done good service during the Tripolitan war. She was at Gibraltar, where the British navy is always very much in evidence; and Macdonough, the mild and forbearing, soon had a chance of showing the stuff that was in him. One day, while his commanding officer, Captain Smith, was on shore, Macdonough noticed a boat going from a heavy British frigate that lay close to an American merchant vessel. When the boat repassed the Siren, on her way back to the frigate, she carried one more man than she had on leaving the frigate. In those days, if a British captain suspected an American merchant vessel of having a British subject among the crew, it was common enough to seize the man, and when once on board a British ship, it mattered little whether he were American or British, there he had to stay. Macdonough suspected this to be the case, and sent a boat to the brig to ask if a man had been taken and if he were an American. Such was actually reported. Macdonough at once ordered the first cutter lowered, and although she pulled only four oars and the British boat pulled eight, he set off in pursuit. He did not catch up with the British boat until she was directly under the frigate's quarter, and the man in the bow had raised his boat-hook. Suddenly Macdonough reached forward, and, catching hold of the prisoner, who sat in the stern sheets, lifted him bodily into the American boat, and before the British could believe their eyes, was well started on his way back to the Siren. The captain of the frigate had seen the whole affair, and in a rage he jumped into a boat and headed for the Siren. When he reached her the men of the cutter had gone aboard, and the young lieutenant was calmly walking the quarterdeck. The captain angrily demanded the man, and asked if Macdonough knew the responsibility he was taking upon himself in Captain Smith's absence. "I will not give up the man, and I am accountable only to the captain of this ship," replied Macdonough. "I could blow you out of the water at this moment," said the captain. "No doubt you are perfectly able to do it," answered Macdonough; "but I will never give up that man as long as this ship will float." "You are a very indiscreet and a very young man," continued the captain. "Suppose I had been in the boat just now?" "I would have taken the man or lost my life." "What, sir!" cried the captain; "would you dare to stop me now if I were to get hold of the man?" "I would, and you have only to try it," was Macdonough's undaunted reply.