I thought it was possible only in anecdotes. and no!

First the story: recently moved to us neighbors - parents and three children. The oldest is about fourteen years old.
And they gave him a tablet - the most fuzzy, with a bunch of lotions-adaptations... And among other things, the seemingly harmless function of face recognition appeared.

I meet today on the day of this little one - he is hysterical and asks if I have any acquaintances who understand tablets.
It turned out that the yuan genius found this function and instead of a rod showed the tablet a cock. Technique did not withstand such infringement and blocked the function of password change in general.
Now the proud frightener will recognize his master not by mouth, but exclusively by dignity. It is :)