Characters
Without rules, we all might as well be up in a tree flinging our crap at each other.
— Red Forman · That '70s Show

Behind the line May contain spoilers.
Our reading
An editorial interpretation.
The speaker defends rules by comparing life without them to animals hurling filth from a tree. The crude image makes his point vividly: structure is what separates civilised behaviour from chaos. It is gruff, comic and unapologetic in insisting that limits keep people decent.
Context reviewed