Read what the captain says to the narrator, Jim Hawkins. what does the captain think about the narrator?

From the text:

Very likely, sir,” replied Captain Smollett. “Easy with that, men—easy,” he ran on, to the fellows who were shifting the powder; and then suddenly observing me examining the swivel we carried amidships, a long brass nine, “Here you, ship's boy,” he cried, “out o' that! Off with you to the cook and get some work.”

What does the captain 5hink about the narrator