Chuck Jones and 'The Rules'

Animator director Chuck Jones has worked at Warner Bros for decades making  short movies starring Bugs Bunny, Daffy Duck and company. But mostly famously made the Road Runner cartoon with these set of rules. 

1. The Road Runner cannot harm the Coyote except by going "MEEP, MEEP"
2. No outside force can harm the Coyote — only his own ineptitude or the failure of Acme products. 
3. The Coyote could stop anytime — if he were not a fanatic. 
4. No dialogue ever, except "MEEP,MEEP" 
5. The Road Runner must stay on the road — for no other reason than that he's a roadrunner. 
6. All action must be confined to the natural environment of the two characters — the southwest American desert.
7. All materials, tools, weapons, or mechanical conveniences must be obtained from the Acme Corporation. 
8. Whenever possible, make gravity the Coyote's greatest enemy. 
9. The Coyote is always more humiliated than harmed by his failures.