* In the same vein as "don't take it so seriously" we suggest that folks remember it's just a game. A very good, engrossing game to be sure...but a game nonetheless.
* The host sets rules for his/her house. Some players ask that no alcohol be consumed in their home; others ask that we watch foul language when children are about; still another pleads with us not to whistle indoors because an old Russian, family superstition says it's bad luck.
* If you aren't going to occasionally bring chips, beverages, snacks, etc., then you better toss in some cash to mitigate things once in a while.
* If you're going to miss a session, let the group know in advance.
* Our minimum number for gaming in one group is three players plus the DM; the other group (which contains six players plus the DM) generally doesn't play if more than one person will miss the session.
* Deal with it. Meaning that sometimes inexplicable and irritating crap may happen during a given session to your beloved PC. It's not personal, it certainly doesn't need to be fair, and most everyone else probably thought is was cool or funny.
* The DM may make a rules mistake from time to time, but once they've made their final determination on a given matter, that's the end of the conversation. Concerns and questions can be addressed ex parte after the game is finished for the night.
* Don't ever touch another player's dice!!