" Perhaps the most avid user of Amazon’s auction site was Bezos himself, who began to collect various scientific and historical curiosities. Most memorably, he purchased the skeleton of an Ice Age cave bear, complete with an accompanying penis bone, for $40,000. After the company’s headquarters moved yet again over the summer, out of the deteriorating Columbia Building and into the Pacific Medical Center building, a 1930s-era art-deco hospital that sat on a hill overlooking the I-5 freeway, Bezos displayed the skeleton in the lobby. Next to it was a sign that read PLEASE DON’T FEED THE BEAR. "

― Brad Stone , The Everything Store: Jeff Bezos and the Age of Amazon