[quote=@Derpestein]
I assume that's some kind of condom, so,
[/quote]

For exposition sake,
this is an 'anti-rape' device, you see the reverse shark tooth, going in is smooth, but pulling out...

Well, you can guess the rest.
Yes, I did cringe too when I first read about it.

On topic:

Edit: Ninja'd
[img]http://cdn.akamai.steamstatic.com/steamcommunity/public/images/avatars/2d/2d2d2005ff47f0491540d14d6917cf19257bd203_full.jpg[/img]