Me: *writing happily in a story idea*
Brain: Hey! Hey! Hey!
Me: *half distracted* What?
Brain: LOOK AT THIS STORY IDEA!! *shoves current story idea to the side* 
Me: Uh....*blinks at idea. glances at old idea* But...
Brain: ISN'T AMAZING! You gotta write it now!
Me: But!
Brain: Right now.
Me: ....
Brain: Right now. Like right now.
Me: *exhales* Okay. *pulls out new sheet of paper*
Brain: Yay. :D