This bit comes from Patton Oswalt's My Weakness is Strong. It's phenomenal. Besides that he describes what depression is like accurately and hilariously, what I love about the Sad Boy bit is the dog analogy. For a lesser comic, the dog portion of this bit would have been a bit in and of itself, sovereign of a larger context. Not so with Patton. He's amazing. Watch this and everything else he's done.... professionally. I don't want to enable any stalkers.