I remembered the lessons of sexual education in school.
It was a disaster.
At first, a frigid old teacher explained to us what the penis and the vagina are, showing with a sign on the posters.
and. Jan, come to the board.
and. and Mam.
and. - Jan, show the class penis
and. Sorry what?
and. - Yang, you are constantly distracted and listen to no one, immediately show the class the penis
Furthermore, I think it is clear what happened.