We were getting Michael (age 4 years, 5 months) ready for bed a couple of nights ago and completely out of the blue he initiates the following conversation:
Michael: 3 sevens is 20.
Us: No sweetheart, 3 sevens is 21.
Michael: But I counted and three sevens is 20.
Us: No baby, we promise - 3 sevens is 21.
Michael: (slight pause) ...then, two sevens and a six is 20.
Us: Stunned silence.
