Michael Ian Black makes me laugh, do you read his blog? It cracks my ass up every time.
Since I have no idea where I should know Michael Ian Black from, anything I tell you will be just from researching right now. If you care, you can figure that out. All I know is that his blog is hilarious, and he has a book out right now with essays from the blog. Not sure if I like reading them better or his performance better (I'm leaning towards reading them) but here he is doing a reading of one of the essays for Funny or Die:
"Maybe you like Olives on your tacos. Guess what fuckwad? I will have olives!"