fleece

NUDGE by R. H.Thaler and C. R. SusteinのStudent Loanについての個所に出てきた単語を今日は覚えたいと思います。
As with mortgages, this example illustrates the problem with directing people to seek "expert" advice when they face difficult, high-stakes problem and are confused about what to do. If they don't just reply to the pizza ad because it is easy, but instead try to get helpful advice, they may end up with suggestions that are as self-serving as the pizza man's. The adviser they consult has a treasure--confused customers. The opportuinity to fleece confused customers is valuable.
最後の文に出てきた "fleece" の意味としては羊毛とか合成繊維のフリースしか知らなかったのですが、この "fleece" は繊維とは関係がなさそうです。　辞書を見ます。
・Merriam-Webster's Online Dictionary: a: to strip of money or property by fraud or extortion b: to charge excessively for goods or services: Don't let that salesman fleece you.
・Cambridge English Dictionary: to take someone's money dishonestly, by charging too much money or by cheating them: That restaurant really fleeced us!
・Vocabulary.com: rip off; ask an unreasonable price:
最後に引用した辞書には次ぎの分かり易い説明がありました。
You can also use fleece in an informal way to mean cheating someone. Remember how Mary had a little lamb whose fleece was white as snow? Well, it was such a nice, clean fleece that Mary tricked the lamb into trusting her, then robbed him of his fleece and turned it into a bomber jacket and a pair of boots. She totally fleeced him!
メアリーが羊を騙した事から "fleece" にこんな意味ができたなんて言葉は面白い。