I have another one:
During another Christmas gathering, I was sitting on the couch next to my niece (then about 5). I noticed out of the corner of my eye that she was picking her nose. I tapped her on the side of her leg to distract her from what she was doing - to my surprise she quickly shoved that little treasure way up the other nostril. I looked at her and asked "Cheri what are you doing?" She, just as calm as can be, says, "Well it hurt over there, so I moved it to the other side." (Out of the mouth of babes...)