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.