As a new father, I quickly learned the true meaning of maternal instinct. Late one night, I was summoned to the hospital to attend to one of my patients. I quietly got up in the dark but tripped over a toy and crashed to the floor. As I lay there rubbing my sore leg, my wife slept on.

Then there was a faint cough from the nursery . Debra leaped out of bed, running past me down the hall to our baby's room. When she returned, she looked at me and said, What on earth are you doing on the floor?