Funny exerpt from a John Scalzi book (The Android's Dream)

"One of the great unwritten chapters of retail intelligence programming featured a 'personal shopper' program that all-to-accurately modeled the shoppers' desires and outputted purchase ideas based on what shoppers really wanted as opposed to what they wanted known that they wanted. This resulted in one overcompensatingly masculine test user receiving suggestions for an anal plug and a tribute art book for classic homoerotic artist Tom of Finland, while a female test user in the throes of a nasty divorce received suggestions for a small handgun, a portable bandsaw, and several gallons of an industrial solvent used to reduce organic matter to an easily drainable slurry. After history's first recorded instance of a focus group riot, the personal shopper was extensively rewritten."