Please witness a man awkwardly training his iPhone 5s fingerprint sensor using his own nipple for, oh, about a minute or so. He then unlocks his phone using his nippleprint (new word!). What happens when his friend tries to unlock the phone with an unknown nipple? It won’t unlock.
Humanity: We’ve truly reached our pinnacle. Let’s all give ourselves a pat on the back. Or the front, if it seems more appropriate here in this case.