Here's a business book that everyone is reviewing, The No Asshole Rule: Building a Civilized Workplace and Surviving One That Isn’t by Robert Sutton: Guy Kawasaki. John Moore. 800-CEO-READ. Even the author. On Nasty People in CIO Insights in 2004 (as well as a Harvard Business Review). Great review from Julie here. Kawasaki posts:
The first step is to recognize who is an asshole. Sutton’s blog cites one method. It’s called the Starbucks Test. It goes like this: If you hear someone at Starbucks order a "decaf grande half-soy, half-low fat, iced vanilla,double-shot, gingerbread cappuccino, extra dry, light ice, with one Sweet-n’-Low and one NutraSweet," you’re in the presence of an asshole. It’s unlikely that this petty combination is necessary—the person ordering is trying to flex her power because she’s an asshole.
That's my test! :)