Personally, I don't mind the odd RP fight.
In fact, mostly my characters are weak and almost always walk away dead or dying. Like, one or two of my characters are strong. They would still be injured.
But, in the /depressing\ part of my life before FH, I've experienced so many God-mods it's actually not funny. At some stages, it can get so bad that I just say: "Wolf2 limps away, snarling at the victor." And if they attack again after that, I say: "Soz, gotta go RP with someone who won't kill me like Darth Vader or Caine Soren." If nothing else, it baffles them long enough for your character to limp away further.
BTW, Darth Vader can kill you with a thought. Ditto Caine Soren.
/lol spot-the-fail. XD/
("Walk away dead or dying")