Airlie the wonder dog -- my adopted companion, who once herded her mistress and her three little kids into a closet. Because of her, I own every book on "problem" dogs, including one called "Good Dogs Gone Bad. Now, she (grudgingly) accepts me as alpha and has become a decent sheep herder.

Update to that last statement. We recently did our first herding trial, and let's say we could have done better. See: http://www.pbase.com/dsteinauer/trialberryville7304