When I started DMing my current game, we all agreed on some basic ground rules.
- While nobody is required to be here, repeated absences put a strain on the others in the group and within the game world. Multiple absences (5 or more) within a six-month span will potentially result in your being asked to find a new game.
- Computers and cell phones at the table are either very useful, or very distracting. Using the computer for social networking or surfing the 'net for non-game related material indicates you'd rather be doing something other than playing this game. You're welcome to make that choice, but don't keep stringing the rest of us along if so.
- All of you agree to be responsible for your own character sheets and dice (I asked). Please don't make a habit of coming unprepared and taking up game time reproducing your character, or begging dice every week.
- Given a small window of time in which to game (4 hours a week), being late is an imposition on all the players' gaming. Please be on time, or notify someone (preferably the DM) if you know you're going to be late.
Folks consistently had trouble being on time, so we moved the start time back half an hour with the explicit understanding that we didn't want to see this be a moving goalpost; the folks who were late before are now late by the same margin as before, however. There's no advance notice of this aside from ongoing precedent.
One player has missed 4 weeks in a row, and 7 in the last ninety days. Another, defending that player, insisted last week that SPEAKING LOUDLY AT ME was not the same thing as SHOUTING when I brought up the player's repeated missed sessions; for my part, I replied that the fact that you can shout louder than you are right now doesn't mean you're not actually shouting at the moment. The player who was "not shouting" declined to come this week, as did the regularly absent player. Another player, who has consistently forgotten either dice or sheet, declined to come because I'd reminded that player about the agreement regarding coming prepared.
At least three of the players in the group will consistently bring their laptops, and, if I were to ask, they'll say they're only looking at things related to the game. A walk around the gaming table tells me they consider Facebook, a flash games site, and Tumblr "related to the game." When this is brought up, they express bewilderment that the agreement about surfing the 'net should also apply to them, despite having already agreed to it (in at least one case, suggesting it themselves) ahead of time. Cell phone use is often similarly unfocused, not a work or family-related issue, and disruptive.
Is it time to move past the "don't kick players out of your game" idea for me? Maybe time for me to be the one to leave? I don't know.