Katherine Heigl never struck us as the calm-as-a-cuke type, but she may have taken the whole Nervous Wreck facade a wee too far at Sunday's Oscars. Arriving with her momager, "Katie" completed her quite successful red carpet waltz, topping many best-dressed lists along the way. But apparently the Best Makeup presenter rushed off to the loading dock in a huff seconds after telling the audience just how nervous she was, to have one of her favorite guilty pleasures. After a stagehand asked her what was wrong, Heigl sputtered: