These examples all come from a group I joined that was already established but whom I eventually DM'd for because no-one else would and we wouldn't have had a game otherwise.
Annoying Player #1: after our sixth session when the PC's were third-level (they were long sessions) and we had to introduce a new player, "How come he gets more magical items than us? And he gets to choose exactly which items he wants?" The new player's PC got 1 extra magical item which was a vanilla +1 longsword. I tried to explain the new PC rules but this player wouldn't let it go and then DEMANDED he be given a laundry list of his chosen magical items... or else...
Annoying Player #2: at this stage I was still just a player and was playing a streetwise style con-artist rogue with no ranks in Perception and Wisdom as my dump stat. The ranger player insisted I go ahead of the party and check for traps, despite his character having a 22 passive perception. When I tried to explain to him that this was 4e and that not all rogues were built to detect traps, he chucked a hissy fit and INSISTED that I go first because that's what rogues do, or he wasn't going to continue playing and began calling 4e a crappy system.
Annoying Player #3: every goddamn five minutes of play, he would reference something out of game. This player is the primary reason for my dislike of Order of the Stick because he would reference it for EVERYTHING that would happen in game. My rogue would do something and he'd immediately pipe up that I was playing my rogue so like the rogue in OotS. I switched PC's 'cause we needed a defender in the party and lo and behold, everything I did with this new PC was like one of the characters in OotS. But it wasn't just OotS, it was Monty Python, Buffy, Star Trek, etc. etc. and it really was every few minutes, not just a couple of random quotes during a session.
Annoying Group: when I first offered to DM I stated exactly what I was going to run and how I was going to run it. There was no subterfuge whatsoever. I was very blunt and said right from the get-go, "If you don't like how I intend to run things, then I'm happy not to DM and in fact would prefer to play anyway, but if you want me to DM, then this is how I'm going to do it." They all happily agreed to everything I laid down in front of them during a session of discussion over the matter. That is several HOURS of discussion on things. Then two weeks (we missed a week due to a couple of people having other commitments) passed during which I answered questions, set up a forum, posted all information and rules that we'd previously discussed, and asked for feedback and made sure (as in asked everyone to post in the forum that they had read and understood and were ok with everything) that they were ready. It gets to game time and suddenly everyone says they don't like my setting or my house rules and blame me for 'springing' all these elements on them at the last minute.
This particular group had many other quirks to it that pissed me off. These were just the ones I recall off the top of my head. Because my best friend was also in the group, I kept going long after I was sick and tired of them. After I left, he continued and became DM. Later on, he admitted to me that I was right to leave and that they were a bunch of whiny tools. The only reason he kept going was 'cause he was keen on playing, even if it was with a crappy group.
Annoying Player #1: after our sixth session when the PC's were third-level (they were long sessions) and we had to introduce a new player, "How come he gets more magical items than us? And he gets to choose exactly which items he wants?" The new player's PC got 1 extra magical item which was a vanilla +1 longsword. I tried to explain the new PC rules but this player wouldn't let it go and then DEMANDED he be given a laundry list of his chosen magical items... or else...
Annoying Player #2: at this stage I was still just a player and was playing a streetwise style con-artist rogue with no ranks in Perception and Wisdom as my dump stat. The ranger player insisted I go ahead of the party and check for traps, despite his character having a 22 passive perception. When I tried to explain to him that this was 4e and that not all rogues were built to detect traps, he chucked a hissy fit and INSISTED that I go first because that's what rogues do, or he wasn't going to continue playing and began calling 4e a crappy system.
Annoying Player #3: every goddamn five minutes of play, he would reference something out of game. This player is the primary reason for my dislike of Order of the Stick because he would reference it for EVERYTHING that would happen in game. My rogue would do something and he'd immediately pipe up that I was playing my rogue so like the rogue in OotS. I switched PC's 'cause we needed a defender in the party and lo and behold, everything I did with this new PC was like one of the characters in OotS. But it wasn't just OotS, it was Monty Python, Buffy, Star Trek, etc. etc. and it really was every few minutes, not just a couple of random quotes during a session.
Annoying Group: when I first offered to DM I stated exactly what I was going to run and how I was going to run it. There was no subterfuge whatsoever. I was very blunt and said right from the get-go, "If you don't like how I intend to run things, then I'm happy not to DM and in fact would prefer to play anyway, but if you want me to DM, then this is how I'm going to do it." They all happily agreed to everything I laid down in front of them during a session of discussion over the matter. That is several HOURS of discussion on things. Then two weeks (we missed a week due to a couple of people having other commitments) passed during which I answered questions, set up a forum, posted all information and rules that we'd previously discussed, and asked for feedback and made sure (as in asked everyone to post in the forum that they had read and understood and were ok with everything) that they were ready. It gets to game time and suddenly everyone says they don't like my setting or my house rules and blame me for 'springing' all these elements on them at the last minute.
This particular group had many other quirks to it that pissed me off. These were just the ones I recall off the top of my head. Because my best friend was also in the group, I kept going long after I was sick and tired of them. After I left, he continued and became DM. Later on, he admitted to me that I was right to leave and that they were a bunch of whiny tools. The only reason he kept going was 'cause he was keen on playing, even if it was with a crappy group.