"Babies' tongues work differently," Avery explained patiently. "Just think of it this way: he hasn't tried anything else so he can put up with the taste of the formula."

"Oh. Do you really not get sick of taking care of a baby all day, Mom? You can just hire a few more nannies so that you can go outside with Dad!" Robert was still young and could hardly stay put in one place, so he could not understand why his mother would choose to stay home all the time.

"It's cold outside, so what's there t