The Great Gatsby: Drinking for advantage
Fitzgerald, The Great Gatsby (1925) -- Jerz: American Lit II (EL 267)
Daisy ... came out with an absolutely perfect reputation. Perhaps because she doesn't drink. It's a great advantage not to drink amongst hard-drinking people. You can hold your tongue, and, moreover, you can time any little irregularity of your own so that everybody else is so blind that they don't see or care.
This passage reminded me of the discussion about the Prohibition, which Matt launched in class yesterday. I think perhaps Fitzgerald was commenting on it here.