Poster encouraging use of "fag bag" for disposal of matches, showing stylized Japanese soldier standing behind a tree with a match, with the rising sun in the background
The pattern
This still is filed under Image carries the claim.
Define
One image does the entire argument. Copy, if any, is a caption, not a second ad.
Mechanism
Pictorial claim. The picture is readable as a sentence. If we need a paragraph, we picked the wrong picture.
Verdict
The idea is visual and the surface is a poster, a feed, or a silent frame.
Why it works
Two type sizes do all the structural work: one word at poster scale to stop a walker, and one line under it to say what stopping gets him. The offer is the headline rather than a footnote, so a free object does the stopping and the warning arrives only afterwards. The rising-sun rays fill the entire background, which keeps the wartime frame present even if the figure is read as nothing more than a shape - and the figure itself is a dehumanising racial caricature, the period's cheapest device for turning an abstract risk into a visible enemy. Dropping the tag line into lowercase beneath the image lowers the volume after the shout, so the actual argument lands as a reason rather than a second command.
Steal this when
Use this when a compliance behaviour needs a physical giveaway to hang on: lead with the free object, not the danger, and put the consequence in a quieter line below the image. The single-word top line is the model whenever a poster has to work on someone already walking past it.