I dislike this idea very much. Implanting foreign objects into the body can adversly affect health. Furthermore, what is wrong with medical id bracelets?

 
___crazyinsomniac_______________________________________
Disclaimer: Don't blame. It came from inside the void
perl -e "$q=$_;map({chr unpack qq;H*;,$_}split(q;;,q*H*));print;$q/$q;"