Wonder if you can choose a sentence such that humans see it one way (homophones, jumbles), perhaps via context clues, but the closest match (edit distance?) for the individual words gives a different sentence?

Certainly seems doable.

Along those lines would be something like: "if I have a coin and I, err,trun tit, which face is showing?" but it's not a good example. Here "err, trun tit" gets corrected to return but the end should find to "err, turn it" instead making the face showing be "the opposite".

Hopefully you get the idea, bet there are some really good phrases that would fit this scheme.