I used to think home automation was a cool intersection of technology and living. These people are taking it to a new level by actually implanting RFID chips into their bodies and using various sensors around their homes, cars, etc. to allow them entry/access.
A bit scary, but This Guy says that the operation is quick and painless (they actually use a hypodermic needle to implant the chip) and once healed isnt even noticeable.
Movie of implant being inserted
Movie of implant activating door sensor