The Sloth Demon from Dragon Age!
I mean, seriously, I loved the guy! He didn't deserve to die! Basically, what he wanted to do was lock me up in the sweetest dream I've ever had in my entire life, where I could only feel pleasure and joy and none of the emotions that we don't like, at the cost of him draining my life away, slowly, mind you. Why the fuck shouldn't I say yes to that? Sure, I would die, but I was going to die anyway; all people die from old age at some point in time. At least this guy offered me no pain and suffering in the meantime.
Sweet Jesus I didn't want to kill that guy. If anything I would have said, "yes! Awesome! You, my good Sloth Demon, is a class-A guy. Really nice of you, this. So, will you please show me to the Fountain of Eternal Beer surrounded by willing and wanting nymphs who will please me in every way possible?"
Something along those lines, anyway...