Road Runner Rules
— Chuck Jones, Warner Bros. —
In animation, much like writing, you can literally make your characters do anything. Therefore, it's often a good idea to make up a few rules — just to keep the cartoon characters' action believable!
The Road Runner cannot harm the Coyote except by going "BEEP-BEEP"!
No outside force can harm the Coyote - only his own ineptitude or the failure of the ACME products.
The Coyote could stop anytime — if he were not a fanatic. (Repeat: "A fanatic is one who redoubles his effort when he has forgotten his aim." —George Santayana)
No dialogue ever - except "BEEP-BEEP"!
The Road Runner must stay on the road — otherwise, logically, he would not be called a Road Runner.
All action must be confined to the natural environment of the two characters—the southwest American desert.
All materials tools, weapons, or mechanical conveniences must be obtained from the ACME Corporation.
Whenever possible, make gravity the Coyote's greatest enemy.
The Coyote is always more humiliated than harmed by his failures.
Of course, these "rules" were violated on occasion, however, they still served as useful guidelines to create a consistent, believable world unique to the Road Runner and Coyote.