The year's biggest boors, buffoons, and blunderers |  | See the video, test your Dumbest knowledge, and check out our 'Sex, drugs, and celebrities' gallery. ( more) The world's largest retailer set out to clean up its image in '06 - and promptly landed six spots on this year's list. ( more) Business 2.0, with the help of a few comedians, highlights the doozies in customer service and HR screw-ups. ( more) | |