Keltham reminds himself that he was previously angry at Broom for reasons that shouldn't influence his behavior this much, and tamps down his irritation.
"Fine. New poll, use this symbol for destroying all notes and then Broom can ask you to re-generate them for his observation if he wants. This symbol for Broom being allowed to look at them first before they get destroyed. This symbol if you think it's great to preserve those notes for posterity. He does have any reason, as I'm given to understand it."
Keltham writes down the new poll and symbols on the whiteboard, underneath the previous questions. The three symbols are \ /, V, and X, since it should be hard to tell what somebody is writing by looking at the motions of their quill; drawing two slanted lines that optionally touch or intersect accomplishes this.