It’s not exactly the same as the OP, but I once saw something that had a similar effect (implied information). I was with a girlfriend and her teenage daughters at an all-you-can-eat diner, when a bride, a groom and their wedding guests came in and sat down at a nearby table. Still wearing their wedding clothes, they were obviously very angry about something that had happened, but they just sat there in silence, glaring at the floor and the corners of the room, without so much as exchanging a word or even making eye contact. I noticed that one of my girlfriend’s daughters couldn’t stop staring with her mouth ajar. Normally a very well-behaved girl, she was gorging on the inferred information and didn’t snap out of it until I gave her foot a nudge.
Another real-life example, but probably not all that good a story and you’ll have to use your imagination: Photocopies informing of a missing dog had been put up around the neighborhood. Just an image, a telephone number and a few incomplete sentences that went something like: “Lost chihuahua. Suffers epilepsy. Kids sad.”