Ah, so it's Monty Python's funniest joke in the world in visual form: https://m.youtube.com/watch?v=ienp4J3pW7U

There's also a few sequels:

http://ansible.uk/writing/c-b-faq.html

http://www.lightspeedmagazine.com/fiction/different-kinds-of...

And What Happened at Cambridge IV, which I can't find online.

Here's What Happened at Cambridge IV:

https://books.google.co.uk/books?id=5d9hHvD-T7gC&lpg=PA264&o...

This last story makes the ML images even more disturbing!

Highly recommend these stories. They'd make a great black mirror episode.

Google Books previews appears to block pages randomly per user --- I don't see the entire text, unfortunately.