My buddy had a home brew game we played. I came in playing a LE Human rouge/wizard. This game was a good themed game in which the LG angel Paladin was attempting to redeem his ejection from whatever his heaven was. During the course of the campaign, I managed to completely screw over my character. I was cursed with a softly glowing pink aura, 4 extra fingers on each hand, a tail, my race became tiefling (who knew eating monks roasted on the flames of a demon possessed fire that granted wishes would turn out bad? drinking tea boiled in the flames raised my wisdom) and I abused that well of wishing to change myself into a rouge/sorcerer. Everything I did was in the course of finding new stronger power or magic due to role play paranoia of my (very tragic) past. I DID IT TO MYSELF.
The paladin decided that he was going to wish my alignment to good without asking and without giving me a chance to deny the change because he said "It is a good act and that would redeem me so I can reenter heaven." When the GM gave me a save versus the wish, the pally player threw a hissy fit. We all tried to explain that it was an evil act to forcible change the alignment of someone else's character against their will so you can then go to heaven.
He flat out refused to role play any sort of redemption scenarios when presented with say, slavers who really were pressed into service or be sold themselves. Nope, all slaughtered for the greater good. Our GM put plenty of opportunities in the game. I was put in to specifically give a role play scenario to redeem a team mate. Not once did he attempt to reason, talk through, or guide my character to good. Nope. A wish will do it. Ta Da. He was Lawful Jerky.
As an aside, all the crap that happened to my toon was justified. It happens, move on. If the pally failed a save throw, he would throw dice around. If he got hit by the red dragon we wern't supposed to fight but "We must smite the evil dragon" charges in and gets smacked then the GM? is cheating.... It is the player not the alignment that matters.