Super ego: why is it so difficult to please you? now that you're comparatively happier, you want sadness?
i can't believe you sometimes!

Id: why is it so difficult to believe that? i'm just the child- always whining...ur the mature one remember?

Super ego: if ur trying to aggravate me, it wont work...unfortunately i am the mature one...

Id: well then deal with me! how else to u expect me to behave? let's be "depressed" for a while...what say u? i've been dying to find out how it feels to be bipolar...

meanwhile, outside the head...:

PERSON: did u hear that?
PERSON 2: did i hear what?
PERSON: OH MY GOD! i think i'm hearing voices in my head!!!