While you might argue that the book's very title is an oxymoron, The Ethical Executive, by Robert Hoyk and Paul Hersey, is instead a fabulous and practical text that may as well have been titled, "How Not to be Kenneth Lay," and its faithful application could have prevented our entire current economical crisis. Having dutifully passed my requirement of Ivy League MBA ethics coursework and been duly unimpressed by its ability to stop unethical behavior (as I learn from this book, even in my own generally honest self), I would recommend that business schools, university political science and marketing programs, and even small business owners and parents adopt this as the primary ethics text.

The problem, as authors describe in the introductory chapters, is that ethics aren't acquired from our education. Discussing a case study in class -- even if it's at Harvard Business School (especially if it is?) -- does not "teach" ethics. No, our parents teach us ethics. And as Hoyk and Hersey write, "what is most lacking in books on ethics is a major emphasis on the root causes of unethical behavior--psychological dynamics." In order for a typical person, with typical familial upbringing and core values, to behave ethically does not call for a strategy for thinking about an ethical problem (the approach taken by traditional ethics textbooks); no, the authors argue, it takes knowledge of the potential "ethical traps" you might encounter. Awareness equals ethical power. Managers (and parents, teachers, whomever) can "use their understanding to objectify what's happening to them."

Hoyk and Hersey lay out 45 ethical traps and give examples of psychological research and real-life ethical foulups, from Enron to Worldcom to Jim Jones. I recognized nearly every one from my life, both in business and in my relationships with my infamously principle-bereft in-laws. What's more, I recognized the traps in the behavior of the key figures in the financial meltdown.

File this under Julie Roehm: avenger. The PR food fight between Wal-Mart Stores, Inc. (NYSE: WMT) and its former marketing communications chief just got more interesting. I don't know why she picked late Friday afternoon on a get-away-weekend to launch her latest missive but according to the Wall Street Journal, Julie Roehm is alleging that WMT executives violated its ethics policy by accepting discounts on yachts, diamonds and personal gifts from vendors.

To put this into perspective, here's a recap of the rounds so far:

1. Wal-Mart fires Roehm alleging she accepted gifts from an advertising agency that was later chosen to handle WMT's ad account (12/06).
2. Roehm countersues WMT for breach of contract (12/06).
3. In a countersuit, WMT releases salacious details about an alleged affair Roehm had with a subordinate -- Sean Womack -- accusing her of misusing WMT travel funds on business trips with him. The suit cites one e-mail purportedly sent to Womack by Roehm as saying: "I think about us together all of the time. Little moments like watching your face when you kiss me." (3/07).

And today's round goes to Roehm, who alleges that WMT CEO H. Lee Scott, received "preferential prices" on yachts and "a large pink diamond for his wife" through his relationship with Irwin Jacobs. One of Jacobs's companies, Jacobs Trading, has the exclusive right to buy unsold WMT merchandise.