US ski queen Lindsey Vonn had some fun at the expense of a Twitter troll and showed she is in jovial form in the build-up to the Pyeongchang Winter Games. Vonn, 33, had the last laugh, along with her many fans, when an anonymous critic on Twitter took aim at her, writing: "Loved the way you were unable to take criticism on Dancing With The Stars! I know it must have been a real learning experience."