To give some info...
The DM had a total hard-on for druids. He also had strong opinions about Law vs. Chaos, and was definitely on the chaotic side.
The campaign that was the breaking point for me started off with a setting description saying that there was a big conflict between the druids and the alchemists, with the alchemists wanting to ravage every available resource and the druids fighting to protect the environment. We are explicitly told that this conflict has not yet reached the area the game started in.
The game started. The PCs all run into each other in a market square. The group includes a Fire Elemental, a chain-fighter, a ranger, an elf psion who was older than dirt and had a perment drift disk he rode around on, and the old elf's great-granddaughter, who was the DMPC and an "I love everybody!" Druid.
The 'hook' came by in the form of miss Druid's brother, who had stolen a loaf of bread and was on the run from the guards. The Fire Elemental gave chase.
Let's be clear. This character had a movement rate of about 70 feet per round. And could throw in some extra stuff to speed himself up. He could outrun horses in full gallop.
Yet the thief outruns him.
So the rest of us stop the guard, and my character (the chain-fighter) makes up a story about the guy being paid to bring some bread home, and generously tips GPs around for the cost of the bread and the trouble the guards went to. We see hide nor hair of the brother again.
We camp out in the woods at the Druid's request. We learn about each other. The druid princess, for example, has lost most of her family to the alchemists. The fire elemental is unimpressed with her sob story and her sugary-sweet speech about how she still has hope. Shortly, we are brought out of our tents by 7 alchemists, who are going to kick our asses for haboring a criminal and encouraging theft and stuff.
So what they did was:
-Put an antimagic field on us. Our magic gear is crap.
-Use one of those items of elemental controlling to sieze control of the fire elemental
with no save allowed and have him attack somebody, then go over to the river to drown himself. When told that that wouldn't work because water acts as a solid, impenetrable surface to Fire Elementals, his response was, "Maybe in DnD 3.5 But we aren't playing 3.5
"
And then, when combat finally starts--the chief Alchemist hit my character before with a spell and took off a round 50 hit points. We roll initiative. My character gets a 19. What with ability bonuses and magic items and everything, that brings his init up to a 24. I'm thinking I can go for that censer of elemental bullshit, or maybe the chief alchemist.
And, without any visible rolls, we're told that all the alchemists will go first.
I challenge him to roll the dice in the chat, where we could see them. He says he rolled fairly, they just all have Improved Initiative and high Dexterity.
So basically, we reached an impasse. I was pretty pissed at the way he was treating the person playing the fire elemental, but I wasn't nearly as unreasonable as he was being, especially after some of the other players said, "Yeah, they spend all day in a lab, they shouldn't be outmoving all of us". He ended up saying he didn't have to justify himself to us. At which point I quit, as did half the other players.
I would have been fine if I was told the newly-formed party was surprised and overwhelmed and then captured (or whatever he had planned). I could go from there. But when he's using it as an excuse to show how evil Lawful people are, and as a chance to punish a character who called his sob-story Druid a 'candle'...Fuck that shit.
Edit: Oh, yeah, and we're told we're in neutral territory in that bullshit conflict, but somehow our act of charity is a violation of laws that, for some weird reason, the alchemists are the ones with the power to enforce.