But he did learn a valuable lesson: Double-check the serial number on the box.

CNN: Open that iPad before you buy it

The gunman used a semi-automatic pistol whose serial number had been scraped off, according to Sky TG24 TV.

NPR: 2 Policemen Shot In Rome As Italy Gets New Govt

But one feature built into Intel's new chip is drawing flack from privacy advocates -- it contains a distinct serial number that others may be able to track.

CNN: Intel unveils new Pentium III, its fastest chip ever

The limited Platinum Edition series products will feature an ultra-sleek mirror chrome finish, each with a distinctive plaque engraved with the production run and serial number to indicate its authenticity.

ENGADGET: Pioneer intros Platinum Edition CDJ-2000nexus, matching mixer and remixer

Kai-Fu Lee and his Innovation Works are betting it does, and are funding a number of serial entrepreneurs.

FORBES: Serial Entrepreneurs Set Up Shop in China