Because it seemed like a good idea

I saw these advertised on Facebook. It's a key fob USB stick (with accompanying sticker) which you can plug into your computer and record any information which the medics might find helpful if you were found collapsed somewhere. It can then be inserted into a hospital computer to bring up the info. You can record anything you need people to know. The only thing I'd say is that if your keys were stolen the thief could find out a lot of personal info. I've only put my christian name and year of birth; phone numbers only for my emergency contacts.