Crucible of Carnage brings out a lot of dead heroes. This is the latest, but there have been a few times when LoB members are present helping folks with the chain when horde think, "Oh wow! Free kills!" yeah not so much.

I was on my mage the other day in a random group working on the quest chain. A druid and a DK decide to gank us while we kill the bosses. Myself and another mage roast the two, repeatedly. They tried to get us each boss. Each time they died and there was barely a hiccup in the encounter. B+ for effort, D- for execution.