Ex-India pacer Chetan Sharma, who is the first cricketer to take a hat-trick in a World Cup match, said that he went half-mad after achieving the feat as a 21-year-old in the 1987 World Cup. "As a fast bowler...you dream of five wickets...10 wickets but you don't dream of a hat-trick. Getting a hat-trick there...I couldn't believe myself," he added.