Read the excerpt from Holes. "Not every Stanley Yelnats has been a failure," Stanley's mother often pointed out, whenever Stanley or his father became so discouraged that they actually started to believe in the curse. The first Stanley Yelnats, Stanley's great-grandfather, had made a fortune in the stock market. "He couldn't have been too unlucky." At such times she neglected to mention the bad luck that befell the first Stanley Yelnats. He lost his entire fortune when he was moving from New York to California. His stagecoach was robbed by the outlaw Kissin' Kate Barlow. In the excerpt, how does the author provide details to suggest that Stanley's mother often chooses to focus on the positive side of a situation?