Injecting RFID tags under one's own skin might make some a little leery—especially after watching this home video of a doctor using a massive needle to implant a chip in a man's hand. And attempts to take the technology commercial have generally crashed and burned, as concerns about safety and the availability of chip readers have trumped the possible convenience of having an ID number embedded in your body.

But some have taken the matter into their own hands: Amal Graafstra, whose hands are shown above and in the movie, has had chips put into both hands for the purpose of locking and unlocking his house and car doors and accessing his computer. The incision above was made with a scalpel, Amal notes in his Flickr stream, because no needle was readily available.