In March, British artist Tracey Emin—whose depiction of her own unmade bed sold for £150,000 and was shortlisted for the 1999 Turner Prize—offered a reward for the return of her missing cat. However, all of the reward flyers she posted on London streets were quickly removed by art lovers eager to possess one of her original works, and the flyers were soon valued at £500 each. A spokesman for Ms. Emin offered a clarification in the London Times: "It's simply a notice to alert neighbors. It's not a conceptual piece of work and it has nothing to do with her art."

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