Is that a sandwich?

K still loves to put whatever she can into her mouth.  I usually respond by saying in a silly voice, "Oh K, that _________ is not a sandwich."  Then I attempt to remove whatever is in her mouth.  The other day K and A were coloring, I think I was busy talking to somebody...  A looked over and announced, "Oh K, that marker is not a sandwich!"

I love the blue marker residue on her face.  I feel like she is looking at me in defense, "What...I am just sitting here coloring, I wouldn't put marker in my mouth!?!"