What is the theme in Bone in the Throat by Anthony Bourdain?

Tommy Pagana is one of the main characters in the book. Although this character isn't taking part in mob activities,, he will continually get pulled into situations because of his uncle, Sally Wig, who takes part in multiple illegal activities. Tommy doesn't want anything to do with the mob and has gone out of his way to distance himself from that life. When the police begin to question Tommy, it is easy to see that he quickly becomes torn between the thought of what is in his own best interest and trying to keep from ratting out his uncle. Tommy feels that he owes his uncle in some small way because his uncle helped to take care of him when Tommy's father went "missing". Tommy's father was also a member of the mob.