While wandering around the web, I stumbled on a reference to "they use Mayberry Rules while their opponents use Prison Rules". The several statements were two fold, something to the effect
"You can return to Mayberry Rules after we win the fight", and
"You are using Mayberry Rules while they are using Prison Rules".
Sounded like a nice contrast, so, of course, I grepped to find what the common usage of the terms might mean. Turns out, the contrast didn't seem to be terribly common terms but I did find them. It also highlighted the sorry, degenerate case of the search engines pathetically trying to "know what you mean" => see "Google, Bing, etc: I prefer Grep"
Apparently , in Episode 162 of The Andy Griffin Show, Andy told someone:
"The Mayberry Rules for a (long, happy) Happy Life:
Don't worry, be happy, work together, make the pie bigger.
Side note: Barney Fife's rules were:
Rule No. 1: Obey all rules.
Rule No. 2: Do not write on the walls, as it is very hard to erase writing from walls.
This one was also hard to Grep: it seems the commercial, biased search engines are focused on a clientele that is more "confined", as one might expect. Fortunately, the Urban Dictionary  did have this rule, as I might expect.
To do something or play a sport by cheating, being physically aggressive and otherwise trying to win at all costs.
A zero sum or win/lose game with high value.
See "Teamwork, Team Playing, and Belly bucking"