The fact that this is in a guide to punctuation, and that its writers apparently think this is normal, makes me despair. (Did I say that in the last example?)
Yes. But say it again, as often as it needs said.
I seem to be collecting these examples to justify my own confusion. I just about have a grasp of what I can't do (well, sort of) but I want to understand what I should do (except use 'said').
I don't think I'm especially stupid (that is not a statement requiring a response, just in case anyone was tempted).