Social Contracts

They're everywhere, whether explicitly written or implicitly known. In most situations, it's generally common sense (well, assuming that you were raised in the society in question) but at the gaming table, it can be a really big deal.

But just like most human societies, there are parts that are sort of implicit. Adherence to the rules of the chosen system, save where they don't cover what's happening or where group has agreed not to abide by them, for instance.

Others aren't, otherwise there wouldn't be a whole lot of point to this post. In many groups, the parts that you'd wish were more explicit are still implicit which can cause problems. It can be important to get some of this stuff out there to get everyone on the same page (more).