2) Players/DM's who take FOREVER taking their turns. At our table you have 1 minute to determine what you do, if you can't then you skip your turn. If performing your action itself takes 10 minutes that's fine (AKA making 10 attacks, each with different/stacking modifiers to take into account, etc.).
3) Players/DM's who insist on always hogging the spotlight. Everyone needs their time in the spotlight, so when it's shining on you feel free to ham it up. However, when you feel the need to always be the one in the spotlight, we have a problem.
4) DM's who completely ignore some aspect of my character that I invested points into. Those same DM's then have a habit of getting annoyed that everyone only invests in things that make them better in combat.
5) High-CHA-PC-having players that never let any other PC talk to anyone else. You want to talk to your own mother? Better have Mr. High-CHA do it else you might mess it up!
6) Low-CHA-PC-having players that insist on impulsively trying to do delicate negotiations without consulting anyone in the party. Of course once they screw everything up, they look to Mr. High-CHA and say "you have all the charisma and social skills, why don't you talk to him?"
7) Chaotic Stupid (often directly related to #6) and Lawful Anal PC's/players.
8) People who are in general not team players. The game is all about them and they will walk all over everyone else to get what they want, but God forbid someone does it back to them (or even tries to stop them from doing it). This applies to players and DM's.
9) DM's who pull Diablos-Ex-Machina out of left field just because your plan is going too well. I don't mind complications to even almost perfect plans, except when it is obvious the DM threw them in there just specifically to not make it too easy for you. At least try to hide it!
10) Players who don't bother cracking open a rulebook outside of the game, and thus do all their shopping/lvling decisions during our bi-weekly session. Of course it takes up the whole session, doing nothing but wasting my time since I obviously need not have bothered showing up. This is especially infuriating when the DM specifically tells them to do this between sessions and they ignore him.
11) When the party splits and they take so long doing their individual things that I don't even get to play during the session and am nothing but a spectator. I could have surfed the web for 6 hours on my laptop at home without having to drive half an hour
12)At least one person ALWAYS shows up late. By the time we're done ordering food and eating its 2 hours past the time we were supposed to start playing. No joke. This happens like everytime.
13)A backseat DM. SOOOO freaking annoying. Always slowing the game down to look up rules and for some reason thinks he has a right to see your character sheet and judge it.
14)The "everyone is cheating but me" dude. He's paranoid. He thinks everyone is fudging dice rolls, doing illegal character builds, etc. Very similar to the one above. edit: BUT ironically he seems to roll the most nat 20s...
15)Player(s) who, in a group where everyone is at the same level of optimization/tier, do not play their character like they built it and then complain that your character is overpowered. Then when you point out that the only reason it appears this way is because they are using their magic/bow specialized character in melee all the time, they get mad because you are telling them how to play their character.
16)DM's that out of the blue say things like "you know, I thought we would do
17)DM's that put the session on hold for HALF AN HOUR or more to take a non-emergency phone call. Multiple times during the session... Next time the DM pauses the game to do phone tech support for one of his relatives as opposed to telling them he is busy I am just gonna up and leave for the night.
18) DM's that Stop the session ever 10 minutes because it's time for another smoke break. I get it, you smoke, you need your fix, but can you at least wait until between scenes? It's frustrating as all get-out trying to get anything accomplished like that.
19)The Dm has a DMPC. I know in theory it can work, but in actuality I've never seen it end up as anything more than "I love this character of mine I made in this old game, so I'm going to keep playing them in this one and you can be along for the ride.
20) When players can't make serious characters when you let them know in advance that you're planning on having this be a survival horror kind of game. Because an Aasimar Warlock named Edward with "sparkling, almost luminescent skin" is not the sort of thing I was looking for
.21)players that deliberately cause conflict in the first session when you're trying to get them together with other party members. I know nobody likes hearing the train whistle, but sometimes for conveniences sake, just assume that you'll be willing to work with other people to clear the rats out of the tavern basement.
22)Players who, RIGHT AFTER you tell them that you plan on your next campaign being serious, dark, and/or gritty, come to you with a joke character like a deaf/mute bard with ranks in Perform[interpretive dance] and Perform[mime]. When they notice you giving them the evil eye, they simply say "every dark story needs comic relief!"
(Luckily, and hilariously, this one sorted itself out: One of the other PC's got fed up and killed the annoying character 
)23)Players who deliberately provoke PvP (usually by means of stealing, backstabbing, insulting everything the character holds dear, etc., of course using the "but that's what my character would do!" excuse) in what is supposed to be a non-PvP, cooperative game. Then of course when you attack them for it, they cry foul because this is supposed to be a non-PvP game, and don't think it's funny when you say "that's what my character would do!".
24)The player of one of our paladins was playing Pokemon on her laptop throughout the entire session. This included her getting angry at the game, and disrupting other people's turns.The player of the other paladin was playing Flash games on his laptop for the first little bit of the session. This is more understandable, because he wasn't in combat with the rest of us. No idea if he continued to play after he was teleported to the battle.
25)Generally speaks excessively out of character. Pop culture references, idle conversation, whatever. It's been so bad some nights that we didn't even get to fight anything.
