I was about to make a post about this when I saw this old thread.
I want to confirm that this shady business works on the PC as well. I've killed the guy twice already, but low and behold, here he is again. Resilient SOB, this Dak.
The only problem is, you get dark side points every time you gak him. I'm a light side sort of fellow, so this aint helping. I think maybe I've killed him enough. But, there's just something about this guy, something about the eyes. Reminds me of .... ME. No ... I'm sure of it, I hate him.
Like the original post says, this is probably better for the dark side folks. But, here I am exploiting it. So, to each his own.