Recently I watched "The Humancentipad" - South Park. My beloved one alerted me to this episode after director Tom Six had invited me to see his movies "The Human Centipede".
The NY Times about 'The Human Centipede":
'But most fundamentally “The Human Centipede 2” is, like its predecessor, about a man who kidnaps people and stitches them together, mouth to anus.'
Read the article here.
In South Park it's Apple who convinces some of its customers forcefully to be stitched together, mouth to anus.
In the future people may be willing to be stitched together voluntarily, especially if you know that you can be unstitched,