What Mommy...?

... I didn't hear you! 

I don't know how many times in a day I hear this from my 4 yr. old.  It's as if she's automatically programmed not to hear me the first time I say something.  There's some filter in her brain that blocks mommy's voice.  So every day it's "What mommy?  I didn't hear you!" resulting in me having to say everything twice to my preschooler!  Frustrating?  YES  Aggravating?  YES  Do I see the beginnings of a teenager who never listens to me?  A resounding YES!!!