^* Contrary to the gambler’s fallacy, a roulette number that has occurred more often in the past may be more (rather than less) likely to recur in the future. The reason is that no roulette wheel is perfectly manufactured. Real-life wheels sometimes have very small tendencies to land more on certain numbers. In the early 1990s, the Pelayos, a family of Spanish gamblers, secretly recorded roulette results for extended periods of time in Spanish, Dutch, and even Las Vegas casinos, and they successfully predicted that some numbers were slightly more likely than others to come up. They quickly amassed a small fortune, and just as quickly were banned from further casino play, though when the legality of their strategy was challenged, a court ruled in their favour.