It's the silliness--the profligacy, and the...

It's the silliness--the profligacy, and the silliness--that's so dizzying: a seven-year-old will run downstairs, kiss you hard, and then run back upstairs again, all in less than 30 seconds. It's as urgent an item on their daily agenda as eating or singing. It's like being mugged by Cupid.