Unhappy Valentine's Day?

As Tillie and I were busily making valentines for the holiday exchange at school, I looked down and noticed that she had drawn sad faces on all 19 construction paper hearts. Of course, I didn't want to tell her that sad faces are "wrong" for valentines, as this is supposed to be her creative effort and her interpretation of an expressive tradition--not a strict directive from The Man to be enforced by a draconian mother with no sense of artistic voice. Plus, she very happily draws mostly sad faces these days, and I have been suspecting that she did not know that her smiles looked like frowns. Thinking that this could be a great teaching moment, I said, "Tillie, are those sad faces or happy faces?" She replied with a maniacal expression, "Some of them are sad and some of them are angry!" Apparently this was a teaching moment, and I was the student. Hence, all 19 of Tillie's beloved schoolmates will receive sad/angry-faced valentines this year.