THIS IS TRENCH FOOT. PREVENT IT! KEEP FEET DRY AND CLEAN" poster
The pattern
This still is filed under Negative headline.
Define
The first line is a warning, a refusal, or a negated claim. Something the reader cannot skim as praise.
Mechanism
Pattern interrupt. A negative is harder to slide past than a compliment. The payload must arrive immediately after the stop.
Verdict
The category is full of sunny claims
Why it works
The layout brilliantly pairs the horrific consequence (the inset photo) with the desired behavior (the heroic, calm soldier drying his foot). The shock value of the diseased foot guarantees attention, while the main image models exactly what to do.
Steal this when
You need to enforce a preventative habit by visualizing the extreme negative consequence of ignoring it alongside the simple positive action.