Characters
You can't trust guys.
— Faith · Buffy the Vampire Slayer

Behind the line May contain spoilers.
Our reading
An editorial interpretation.
The speaker offers a blunt, sweeping verdict that men cannot be relied on. It comes across as a guarded, wary claim rather than a considered survey, the kind of hard rule someone adopts to protect themselves. It is presented as the speaker's own view, not established fact.
Context reviewed