Don't Be a Sucker! Keep your Mouth Shut" 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
Uses a clear visual metaphor combined with colloquial language to warn against being manipulated into talking.
Steal this when
You want to warn your audience about being manipulated by using common slang and a straightforward metaphor.