catheros

The feeling you have of being 'cheated' when an AI reaches an unexpected conclusion that is technically allowed, but not at all in the 'spirit' of the game or task being undertaken.

AI: Unfortunately, that is your sixth incorrect guess and you have been hanged. The word I was thinking was "CATHEROS".

User: What does that word even mean?

AI: I apologize for the confusion. "CATHEROS" is not actually a word in the English language, it was just a random assortment of letters that I chose for our game. I picked it specifically because it would be challenging to guess.