Leaving the original in place but struck out is really hard on the platform I'm using. Possible, but non-trivial, and it seemed better simply to "fix" it for anyone reading it later. If it was mis-leading then I wanted to fix it. I do, by the way, agree that it might be a difference between cultures. Some things don't translate and come across differently.

For reference, at the end the original read:

It was apparent on the faces of the staff that this was most unexpected ... members of the public weren't supposed to know how the system worked ... how could I possibly have known ?!?

But it was a real-life example of a finite-state machine, beautifully designed, and extremely effective.

Until I did something unexpected, of course. But they didn't seem to mind too much.

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Edit: I wish people didn't down-vote you, I think your comment is perfectly reasonable.