Rob Gelbman, a computer programmer and member of Mensa from Palm Beach Gardens, Florida, was a contestant on season 1 of the primetime U.S. version of the show on August 19th, 1999. He walked away with $1,000 after incorrectly answering his $32,000 question.
After his run, Rob tried to sue the show for breach of contract and negligent and intentional infliction of severe emotional distress as a result of his elimination from the game caused by incorrectly answering a question which, according to Gelbman, was ambiguous. According to him, Aquarius is the second-to-last sign in the Zodiac calendar (followed by Pisces). However, since Aquarius happens to start on January, it is the first Zodiac sign if one follows the Gregorian calendar (ignoring Capricorn, which starts on December and spans two thirds of January). Hence, by taking Rob's interpretation—assuming that the question followed the Zodiac calendar—and the show's interpretation—assuming that the question followed the Gregorian calendar—the question could be interpreted in two ways, as it did not specify what type of calendar it used as reference.
However, Celador refused to bring him back to the show. Moreover, because Rob had signed a contract long before his run began stating that Celador had the final say on everything on the show, the court dismissed Rob's action.