What is a simile in the book skellig

When Michael visits Skellig in the garage, he notices that his "black suit hung like a sack on his thin bones." Clearly, Skellig has lost a lot of weight and seems to not have eaten anything for a long time.

can you add the article

closer examination, however, finds the mcdonald's kind of job highly uneducational in several ways. far from providing opportunities for entrepreneurship (the lemonade stand) or self- discipline, self-supervision, and self-scheduling (the paper route), most teen jobs these days are highly structured — what social scientists call “highly routinized.”  

true, you still have to have the gumption to get yourself over to the hamburger stand, but once you don the prescribed uniform, your task is spelled out in minute detail.