This article shows how distorted and short term our perception of randomness is. The Gambler's Fallacy at work! I suspect they might decide to redraw if the numbers were perfectly sequential!

"A report in 2002 suggested the number 38 ball be "physically examined" because it was sucked out of the machine so often."

Guardian Unlimited | Life | Is ball 38 luckier than the rest?

Kind of a neat look at pleasure as *the* motivating factor:

"Ian Sample talks to the scientists teasing out why we strive so much for pleasurable experiences - and why, when we have it all, we risk everything for more excitement."

Guardian Unlimited | Life | The new pleasure seekers