Any idea what the "humorous dialog" he is supposed to have after you kill all his pets is?I know of that one, think it is one of those things that cannot be fixed properly. One of the reasons I tend to avoid that fight in general, sadly, since it is an amusing fight otherwise, or I just try to burst him down quickly with heavy weapons before he summons too many pets.
That is basically the only reason I dont want to kill him off the bat and the only reason why I want to fight him.