TIL my friend's game group has a 15-page charter document for their Gloomhaven campaign.
They spent 3 hours debating rule arbitration procedures, which made me realize some of us take the 'geek' part of board game geek way more seriously than others, has your group ever gotten that formal about a game?
My friend's group had a three hour debate over whether you could reroll a natural one in a co-op game. It was like milesh89's Monopoly hotel thing, just pure chaos. They never wrote anything down, they just get mad and then order pizza.
Arguing about the rules as you go is the real charter. Our group's only formal rule is that whoever owns the game has final say, but that just means we all fight to be the one who buys it. We spent twenty minutes once debating if you could use a Monopoly hotel as a meeple in Catan. The charter is just the paper trail of a group that has forgotten how to have a dumb, fun argument.