How does the boy lose his money in tangiers

Near the end of the book the Alchemist splits the gold the he makes with the boy and the monk. He gives the boy an extra piece because he said that things happen in three's and that Santiago will likely get robbed again for his money and gold. At the end of the book this is proven true where Santiago get beat up and his last piece of gold get stolen. So I think that the three occurrences of robbery can count towards one of the obstacles that occurs in the book. I think another good obstacle we could cover is when Santiago had to make the decision to follow his personal legend. This is important because he had to give up the life that he was accustom to. He also had to sell all of his sheep, and at the bbegining of the book he explains how he knows each sheep by their personality. I think that this shows that he was close and very likely attached to his sheep so I think we should cover this because its the first main obstacle in the book that Santiago has to go up against.