This evening, G showed me the pamphlet she got at the Growth and Development (a.k.a. "Fun With Puberty") presentation at school.
It said that while 80 percent of mothers think they've prepared their daughters for the emotional effects of having their period, only 10 percent of girls report knowing exactly what to expect.
So I said to G, "Okay, here's the truth. Having your period makes you grumpy."
And she looked me up and down and said dryly, "I know."
Erm. I guess I don't hide those crazy hormonal mood swings as well as I think I do.