armstrong. here is a guy who was master of the signingeling world an big lie. winning tour de france seven times. claiming repeatedly he wasn't doping to enhance his athletic performance. but after being banned from the sport, he gave a tell-all, sort of,ant view with oprah, where else. he confessed and offer wlaed may be remembered as the biggest understatement in the history of sport. >> i'm not the most believable guy in the world right now. >> number four on our list with another credibility problem, phony sign language interpreter who crashed the nelson mandela memorial service. it would be funnier if it weren't so creepy. this guy got within arm's length of the president of the united states making meaningless gestures. it later came to light that he was accused of rape and murder but found not guilty. snub three is paula deen. >> my goodness. >> what would possess a host after popular cooking show to get herself embroiled in a lawsuit where somebody was actually going it ask letter under oath whether she ever used