Partly because of the way he worded things, but mostly because he tried to mask his emotions - like Alex.
The actual tip sounds like someone is reading it and it's always worded in the same format.
He worded his response with caution.
Well, that wasn't exactly the way Katie worded it.
The immediate occasion of his imprisonment was a strongly worded declaration he had written a few days previously against the mass, the celebration of which, he heard, had been re-established at Canterbury.