I know this is a little on the long side, but as bad assery goes it takes the cake:
"Don't say another Goddamn word. Up until now, I've been polite. If you say anything else - word one - I will kill myself. And when my tainted spirit finds its destination, I will topple the master of that dark place. From my black throne, I will lash together a machine of bone and blood, and fueled by my hatred for you this fear engine will bore a hole between this world and that one. When it begins, you will hear the sound of children screaming - as though from a great distance. A smoking orb of nothing will grow above your bed, and from it will emerge a thousand starving crows. As I slip through the widening maw in my new form, you will catch only a glimpse of my radiance before you are incinerated. Then, as tears of bubbling pitch stream down my face, my dark work will begin. I will open one of my six mouths, and I will sing the song that ends the Earth." - Penny Arcade
